56566813560 has 32 divisors (see below), whose sum is σ = 169700441040. Its totient is φ = 15084483584.

The previous prime is 56566813559. The next prime is 56566813601. The reversal of 56566813560 is 6531866565.

It is a happy number.

56566813560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235694937 + ... + 235695176.

Almost surely, 2^56566813560 is an apocalyptic number.

It is an amenable number.

56566813560 is an abundant number, since it is smaller than the sum of its proper divisors (113133627480).

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

56566813560 is a wasteful number, since it uses less digits than its factorization.

56566813560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471390127 (or 471390123 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 56566813560 in words is "fifty-six billion, five hundred sixty-six million, eight hundred thirteen thousand, five hundred sixty".