85656560456 has 32 divisors (see below), whose sum is σ = 169073892000. Its totient is φ = 40570586496.

The previous prime is 85656560393. The next prime is 85656560477. The reversal of 85656560456 is 65406565658.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655980 + ... + 2688036.

It is an arithmetic number, because the mean of its divisors is an integer number (5283559125).

Almost surely, 2^85656560456 is an apocalyptic number.

It is an amenable number.

85656560456 is a deficient number, since it is larger than the sum of its proper divisors (83417331544).

85656560456 is a wasteful number, since it uses less digits than its factorization.

85656560456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49661 (or 49657 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 56.

The spelling of 85656560456 in words is "eighty-five billion, six hundred fifty-six million, five hundred sixty thousand, four hundred fifty-six".