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20066451741 = 3271953316301
BaseRepresentation
bin10010101100000011…
…011100000100011101
31220210110120100220100
4102230003130010131
5312044002423431
613115101411313
71310160011520
oct225403340435
956713510810
1020066451741
118567a97216
123a80269b39
131b7a3a33ab
14d85062bb7
157c69e54e6
hex4ac0dc11d

20066451741 has 48 divisors (see below), whose sum is σ = 35527040640. Its totient is φ = 10658044800.

The previous prime is 20066451673. The next prime is 20066451749. The reversal of 20066451741 is 14715466002.

20066451741 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 645 + 1 + 7 + 4 + 1 = 666.

It is not a de Polignac number, because 20066451741 - 214 = 20066435357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20066451696 and 20066451705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066451749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94710 + ... + 221591.

It is an arithmetic number, because the mean of its divisors is an integer number (740146680).

Almost surely, 220066451741 is an apocalyptic number.

20066451741 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20066451741 is a deficient number, since it is larger than the sum of its proper divisors (15460588899).

20066451741 is a wasteful number, since it uses less digits than its factorization.

20066451741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316386 (or 316383 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

It can be divided in two parts, 200664 and 51741, that added together give a triangular number (252405 = T710).

The spelling of 20066451741 in words is "twenty billion, sixty-six million, four hundred fifty-one thousand, seven hundred forty-one".

Divisors: 1 3 7 9 19 21 53 57 63 133 159 171 371 399 477 1007 1113 1197 3021 3339 7049 9063 21147 63441 316301 948903 2214107 2846709 6009719 6642321 16763953 18029157 19926963 42068033 50291859 54087471 117347671 126204099 150875577 318515107 352043013 378612297 955545321 1056129039 2229605749 2866635963 6688817247 20066451741