656042896 has 10 divisors (see below), whose sum is σ = 1271083142. Its totient is φ = 328021440.

The previous prime is 656042813. The next prime is 656042909. The reversal of 656042896 is 698240656.

It can be written as a sum of positive squares in only one way, i.e., 521482896 + 134560000 = 22836^2 + 11600^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20501325 + ... + 20501356.

Almost surely, 2^656042896 is an apocalyptic number.

It is an amenable number.

656042896 is a deficient number, since it is larger than the sum of its proper divisors (615040246).

656042896 is a wasteful number, since it uses less digits than its factorization.

656042896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41002689 (or 41002683 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 656042896 is about 25613.3343397536. The cubic root of 656042896 is about 868.9152358545.

The spelling of 656042896 in words is "six hundred fifty-six million, forty-two thousand, eight hundred ninety-six".