56656510556 has 6 divisors (see below), whose sum is σ = 99148893480. Its totient is φ = 28328255276.

The previous prime is 56656510523. The next prime is 56656510577. The reversal of 56656510556 is 65501565665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7082063816 + ... + 7082063823.

It is an arithmetic number, because the mean of its divisors is an integer number (16524815580).

Almost surely, 2^56656510556 is an apocalyptic number.

It is an amenable number.

56656510556 is a deficient number, since it is larger than the sum of its proper divisors (42492382924).

56656510556 is a wasteful number, since it uses less digits than its factorization.

56656510556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14164127643 (or 14164127641 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 50.

The spelling of 56656510556 in words is "fifty-six billion, six hundred fifty-six million, five hundred ten thousand, five hundred fifty-six".