56566516654 has 16 divisors (see below), whose sum is σ = 85308917760. Its totient is φ = 28130500440.

The previous prime is 56566516639. The next prime is 56566516679. The reversal of 56566516654 is 45661566565.

56566516654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56566516595 and 56566516604.

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, 321499 + ... + 465289.

It is an arithmetic number, because the mean of its divisors is an integer number (5331807360).

Almost surely, 2^56566516654 is an apocalyptic number.

56566516654 is a deficient number, since it is larger than the sum of its proper divisors (28742401106).

56566516654 is a wasteful number, since it uses less digits than its factorization.

56566516654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144855.

The product of its digits is 19440000, while the sum is 55.

The spelling of 56566516654 in words is "fifty-six billion, five hundred sixty-six million, five hundred sixteen thousand, six hundred fifty-four".