56518187868864 has 42 divisors (see below), whose sum is σ = 161999180854940. Its totient is φ = 18839395956096.

The previous prime is 56518187868823. The next prime is 56518187868889. The reversal of 56518187868864 is 46886878181565.

56518187868864 is a `hidden beast` number, since 5 + 6 + 518 + 18 + 7 + 8 + 6 + 8 + 86 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49060926394 + ... + 49060927545.

Almost surely, 2^{56518187868864} is an apocalyptic number.

It is an amenable number.

56518187868864 is an abundant number, since it is smaller than the sum of its proper divisors (105480992986076).

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

56518187868864 is a wasteful number, since it uses less digits than its factorization.

56518187868864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98121853957 (or 98121853944 counting only the distinct ones).

The product of its digits is 4954521600, while the sum is 81.

The spelling of 56518187868864 in words is "fifty-six trillion, five hundred eighteen billion, one hundred eighty-seven million, eight hundred sixty-eight thousand, eight hundred sixty-four".