56611110663 has 12 divisors (see below), whose sum is σ = 81828686160. Its totient is φ = 37714394976.

The previous prime is 56611110649. The next prime is 56611110667. The reversal of 56611110663 is 36601111665.

It is not a de Polignac number, because 56611110663 - 2²⁴ = 56594333447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611110667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2181843 + ... + 2207636.

It is an arithmetic number, because the mean of its divisors is an integer number (6819057180).

Almost surely, 2^56611110663 is an apocalyptic number.

56611110663 is a deficient number, since it is larger than the sum of its proper divisors (25217575497).

56611110663 is a wasteful number, since it uses less digits than its factorization.

56611110663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390918 (or 4390915 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 56611110663 in words is "fifty-six billion, six hundred eleven million, one hundred ten thousand, six hundred sixty-three".