56687542959915 has 192 divisors, whose sum is σ = 119111427302400. Its totient is φ = 25499563955712.

The previous prime is 56687542959871. The next prime is 56687542959961. The reversal of 56687542959915 is 51995924578665.

56687542959915 is a `hidden beast` number, since 5 + 6 + 6 + 8 + 7 + 5 + 4 + 2 + 9 + 599 + 15 = 666.

It is not a de Polignac number, because 56687542959915 - 2¹¹ = 56687542957867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 407235807 + ... + 407374983.

It is an arithmetic number, because the mean of its divisors is an integer number (620372017200).

Almost surely, 2^{56687542959915} is an apocalyptic number.

56687542959915 is an abundant number, since it is smaller than the sum of its proper divisors (62423884342485).

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

56687542959915 is a wasteful number, since it uses less digits than its factorization.

56687542959915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140191 (or 140178 counting only the distinct ones).

The product of its digits is 7348320000, while the sum is 81.

The spelling of 56687542959915 in words is "fifty-six trillion, six hundred eighty-seven billion, five hundred forty-two million, nine hundred fifty-nine thousand, nine hundred fifteen".