656052637604 has 96 divisors (see below), whose sum is σ = 1469107481856. Its totient is φ = 249427537920.

The previous prime is 656052637589. The next prime is 656052637619. The reversal of 656052637604 is 406736250656.

It is an interprime number because it is at equal distance from previous prime (656052637589) and next prime (656052637619).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 671852 + ... + 1327964.

It is an arithmetic number, because the mean of its divisors is an integer number (15303202936).

Almost surely, 2^656052637604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656052637604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734553740928).

656052637604 is an abundant number, since it is smaller than the sum of its proper divisors (813054844252).

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

656052637604 is a wasteful number, since it uses less digits than its factorization.

656052637604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656245 (or 656243 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 656052637604 in words is "six hundred fifty-six billion, fifty-two million, six hundred thirty-seven thousand, six hundred four".