56505016560 has 80 divisors (see below), whose sum is σ = 184384805760. Its totient is φ = 14274950400.

The previous prime is 56505016507. The next prime is 56505016571. The reversal of 56505016560 is 6561050565.

56505016560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6191166 + ... + 6200285.

It is an arithmetic number, because the mean of its divisors is an integer number (2304810072).

Almost surely, 2^56505016560 is an apocalyptic number.

It is an amenable number.

56505016560 is an abundant number, since it is smaller than the sum of its proper divisors (127879789200).

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

56505016560 is a wasteful number, since it uses less digits than its factorization.

56505016560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12391486 (or 12391480 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 56505016560 in words is "fifty-six billion, five hundred five million, sixteen thousand, five hundred sixty".