56655511065 has 24 divisors (see below), whose sum is σ = 98751519360. Its totient is φ = 30047462304.

The previous prime is 56655510997. The next prime is 56655511111. The reversal of 56655511065 is 56011555665.

It is not a de Polignac number, because 56655511065 - 2¹⁶ = 56655445529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56655511065.

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, 3508737 + ... + 3524846.

It is an arithmetic number, because the mean of its divisors is an integer number (4114646640).

Almost surely, 2^56655511065 is an apocalyptic number.

It is an amenable number.

56655511065 is a deficient number, since it is larger than the sum of its proper divisors (42096008295).

56655511065 is a wasteful number, since it uses less digits than its factorization.

56655511065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033773 (or 7033770 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 56655511065 in words is "fifty-six billion, six hundred fifty-five million, five hundred eleven thousand, sixty-five".