56566560660 has 48 divisors (see below), whose sum is σ = 158647405056. Its totient is φ = 15059555712.

The previous prime is 56566560629. The next prime is 56566560671. The reversal of 56566560660 is 6606566565.

It is a happy number.

56566560660 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 15 ways as a sum of consecutive naturals, for example, 740167 + ... + 813006.

It is an arithmetic number, because the mean of its divisors is an integer number (3305154272).

Almost surely, 2^56566560660 is an apocalyptic number.

It is an amenable number.

56566560660 is an abundant number, since it is smaller than the sum of its proper divisors (102080844396).

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

56566560660 is a wasteful number, since it uses less digits than its factorization.

56566560660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553792 (or 1553790 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 56566560660 in words is "fifty-six billion, five hundred sixty-six million, five hundred sixty thousand, six hundred sixty".