56611110664 has 16 divisors (see below), whose sum is σ = 106173669420. Its totient is φ = 28298132160.

The previous prime is 56611110649. The next prime is 56611110667. The reversal of 56611110664 is 46601111665.

56611110664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55163916900 + 1447193764 = 234870^2 + 38042^2 .

It is a super-2 number, since 2×56611110664² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 895419 + ... + 956554.

Almost surely, 2^56611110664 is an apocalyptic number.

It is an amenable number.

56611110664 is a deficient number, since it is larger than the sum of its proper divisors (49562558756).

56611110664 is a wasteful number, since it uses less digits than its factorization.

56611110664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855800 (or 1855796 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 56611110664 in words is "fifty-six billion, six hundred eleven million, one hundred ten thousand, six hundred sixty-four".