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51660892015368 = 23317136193034411
BaseRepresentation
bin10111011111100001111010…
…00111100000101100001000
320202220201210101111121220120
423233300331013200230020
523232403001323442433
6301512404113223240
713611243030544566
oct1357607507405410
9222821711447816
1051660892015368
1115508296822a19
125964288261b20
1322a97a7b3542c
14ca8587026a36
155e8c41e477b3
hex2efc3d1e0b08

51660892015368 has 64 divisors (see below), whose sum is σ = 136849898675520. Its totient is φ = 16195430092800.

The previous prime is 51660892015367. The next prime is 51660892015429. The reversal of 51660892015368 is 86351029806615.

51660892015368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51660892015363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45961918 + ... + 47072493.

It is an arithmetic number, because the mean of its divisors is an integer number (2138279666805).

Almost surely, 251660892015368 is an apocalyptic number.

It is an amenable number.

51660892015368 is an abundant number, since it is smaller than the sum of its proper divisors (85189006660152).

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

51660892015368 is a wasteful number, since it uses less digits than its factorization.

51660892015368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93035798 (or 93035794 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 51660892015368 in words is "fifty-one trillion, six hundred sixty billion, eight hundred ninety-two million, fifteen thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 1361 2722 4083 5444 8166 10888 16332 23137 32664 46274 69411 92548 138822 185096 277644 555288 93034411 186068822 279103233 372137644 558206466 744275288 1116412932 1581584987 2232825864 3163169974 4744754961 6326339948 9489509922 12652679896 18979019844 37958039688 126619833371 253239666742 379859500113 506479333484 759719000226 1012958666968 1519438000452 2152537167307 3038876000904 4305074334614 6457611501921 8610148669228 12915223003842 17220297338456 25830446007684 51660892015368