56656056611655 has 24 divisors (see below), whose sum is σ = 98204549992848. Its totient is φ = 30216342439296.

The previous prime is 56656056611641. The next prime is 56656056611663. The reversal of 56656056611655 is 55611665065665.

56656056611655 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 6 + 0 + 5 + 6 + 611 + 6 + 5 + 5 = 666.

It is not a de Polignac number, because 56656056611655 - 2⁶ = 56656056611591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56656056611592 and 56656056611601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1707739 + ... + 10780931.

It is an arithmetic number, because the mean of its divisors is an integer number (4091856249702).

Almost surely, 2^{56656056611655} is an apocalyptic number.

56656056611655 is a deficient number, since it is larger than the sum of its proper divisors (41548493381193).

56656056611655 is a wasteful number, since it uses less digits than its factorization.

56656056611655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211967 (or 9211964 counting only the distinct ones).

The product of its (nonzero) digits is 145800000, while the sum is 63.

The spelling of 56656056611655 in words is "fifty-six trillion, six hundred fifty-six billion, fifty-six million, six hundred eleven thousand, six hundred fifty-five".