56157696163872 has 84 divisors (see below), whose sum is σ = 165764866330350. Its totient is φ = 18719232046848.

The previous prime is 56157696163867. The next prime is 56157696163939. The reversal of 56157696163872 is 27836169675165.

56157696163872 is a `hidden beast` number, since 5 + 6 + 1 + 576 + 9 + 6 + 16 + 38 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54295028042256 + 1862668121616 = 7368516^2 + 1364796^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 56157696163872.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1203630997 + ... + 1203677652.

Almost surely, 2^{56157696163872} is an apocalyptic number.

It is an amenable number.

56157696163872 is an abundant number, since it is smaller than the sum of its proper divisors (109607170166478).

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

56157696163872 is an equidigital number, since it uses as much as digits as its factorization.

56157696163872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407308677 (or 2407308654 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 72.

The spelling of 56157696163872 in words is "fifty-six trillion, one hundred fifty-seven billion, six hundred ninety-six million, one hundred sixty-three thousand, eight hundred seventy-two".