56577408168 has 64 divisors (see below), whose sum is σ = 142828945920. Its totient is φ = 18674571200.

The previous prime is 56577408157. The next prime is 56577408179. The reversal of 56577408168 is 86180477565.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56577408157) and next prime (56577408179).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8961733 + ... + 8968043.

It is an arithmetic number, because the mean of its divisors is an integer number (2231702280).

Almost surely, 2^56577408168 is an apocalyptic number.

It is an amenable number.

56577408168 is an abundant number, since it is smaller than the sum of its proper divisors (86251537752).

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

56577408168 is a wasteful number, since it uses less digits than its factorization.

56577408168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 56577408168 in words is "fifty-six billion, five hundred seventy-seven million, four hundred eight thousand, one hundred sixty-eight".