656179456 has 27 divisors (see below), whose sum is σ = 1310614333. Its totient is φ = 327884800.

The previous prime is 656179369. The next prime is 656179471. The reversal of 656179456 is 654971656.

The square root of 656179456 is 25616.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 654541056 + 1638400 = 25584^2 + 1280^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 409056 + ... + 410656.

Almost surely, 2^656179456 is an apocalyptic number.

656179456 is the 25616-th square number.

It is an amenable number.

656179456 is a deficient number, since it is larger than the sum of its proper divisors (654434877).

656179456 is an frugal number, since it uses more digits than its factorization.

656179456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 1603 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The cubic root of 656179456 is about 868.9755219695.

Multiplying 656179456 by its sum of digits (49), we get a square (32152793344 = 179312²).

The spelling of 656179456 in words is "six hundred fifty-six million, one hundred seventy-nine thousand, four hundred fifty-six".