656097792 has 160 divisors (see below), whose sum is σ = 2016537600. Its totient is φ = 185683968.

The previous prime is 656097773. The next prime is 656097803. The reversal of 656097792 is 297790656.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1494309 + ... + 1494747.

It is an arithmetic number, because the mean of its divisors is an integer number (12603360).

Almost surely, 2^656097792 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 656097792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008268800).

656097792 is an abundant number, since it is smaller than the sum of its proper divisors (1360439808).

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

656097792 is a wasteful number, since it uses less digits than its factorization.

656097792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 51.

The square root of 656097792 is about 25614.4059466543. The cubic root of 656097792 is about 868.9394713838.

The spelling of 656097792 in words is "six hundred fifty-six million, ninety-seven thousand, seven hundred ninety-two".