56745564464 has 40 divisors (see below), whose sum is σ = 115856238000. Its totient is φ = 26850410496.

The previous prime is 56745564389. The next prime is 56745564527. The reversal of 56745564464 is 46446554765.

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, 181952 + ... + 382880.

It is an arithmetic number, because the mean of its divisors is an integer number (2896405950).

Almost surely, 2^56745564464 is an apocalyptic number.

It is an amenable number.

56745564464 is an abundant number, since it is smaller than the sum of its proper divisors (59110673536).

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

56745564464 is a wasteful number, since it uses less digits than its factorization.

56745564464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201885 (or 201879 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 56.

The spelling of 56745564464 in words is "fifty-six billion, seven hundred forty-five million, five hundred sixty-four thousand, four hundred sixty-four".