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56145755754165 = 35721121933226961
BaseRepresentation
bin11001100010000011100111…
…10100111100111010110101
321100210111000020212022011110
430301001303310330322311
524324343001433113130
6315225000520025233
714553253111412100
oct1461016364747265
9240714006768143
1056145755754165
1116987310451a00
126369510002219
1325436a2c3424c
14dc167d215737
1567572eca7ab0
hex331073d3ceb5

56145755754165 has 144 divisors (see below), whose sum is σ = 120908927482560. Its totient is φ = 22105231948800.

The previous prime is 56145755754149. The next prime is 56145755754191.

56145755754165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56145755754165 - 24 = 56145755754149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56145755754096 and 56145755754105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14923716 + ... + 18303245.

It is an arithmetic number, because the mean of its divisors is an integer number (839645329740).

Almost surely, 256145755754165 is an apocalyptic number.

56145755754165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56145755754165 is an abundant number, since it is smaller than the sum of its proper divisors (64763171728395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56145755754165 is a wasteful number, since it uses less digits than its factorization.

56145755754165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33227024 (or 33227006 counting only the distinct ones).

The product of its digits is 441000000, while the sum is 66.

The spelling of 56145755754165 in words is "fifty-six trillion, one hundred forty-five billion, seven hundred fifty-five million, seven hundred fifty-four thousand, one hundred sixty-five".

Divisors: 1 3 5 7 11 15 19 21 33 35 49 55 57 77 95 105 121 133 147 165 209 231 245 285 363 385 399 539 605 627 665 735 847 931 1045 1155 1463 1617 1815 1995 2299 2541 2695 2793 3135 4235 4389 4655 5929 6897 7315 8085 10241 11495 12705 13965 16093 17787 21945 29645 30723 34485 48279 51205 80465 88935 112651 153615 241395 337953 563255 1689765 33226961 99680883 166134805 232588727 365496571 498404415 631312259 697766181 1096489713 1162943635 1628121089 1827482855 1893936777 2558475997 3156561295 3488830905 4020462281 4419185813 4884363267 5482448565 6944434849 7675427991 8140605445 9469683885 12061386843 12792379985 13257557439 17909331979 20102311405 20833304547 22095929065 24421816335 28143235967 30934300691 34722174245 38377139955 48611043943 53727995937 60306934215 66287787195 76388783339 84429707901 89546659895 92802902073 104166522735 140716179835 145833131829 154671503455 197002651769 229166350017 243055219715 268639979685 340277307601 381943916695 422148539505 464014510365 534721483373 591007955307 729165659145 985013258845 1020831922803 1145831750085 1604164450119 1701386538005 2673607416865 2955039776535 3743050383611 5104159614015 8020822250595 11229151150833 18715251918055 56145755754165