56561353464 has 96 divisors (see below), whose sum is σ = 179443296000. Its totient is φ = 14691257280.

The previous prime is 56561353427. The next prime is 56561353507. The reversal of 56561353464 is 46435316565.

56561353464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2173264 + ... + 2199135.

It is an arithmetic number, because the mean of its divisors is an integer number (1869201000).

Almost surely, 2^56561353464 is an apocalyptic number.

It is an amenable number.

56561353464 is an abundant number, since it is smaller than the sum of its proper divisors (122881942536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56561353464 is a wasteful number, since it uses less digits than its factorization.

56561353464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372433 (or 4372422 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 48.

The spelling of 56561353464 in words is "fifty-six billion, five hundred sixty-one million, three hundred fifty-three thousand, four hundred sixty-four".