656045656 has 32 divisors (see below), whose sum is σ = 1454292000. Its totient is φ = 271466496.

The previous prime is 656045647. The next prime is 656045701. The reversal of 656045656 is 656540656.

656045656 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 7 ways as a sum of consecutive naturals, for example, 200361 + ... + 203608.

It is an arithmetic number, because the mean of its divisors is an integer number (45446625).

Almost surely, 2^656045656 is an apocalyptic number.

It is an amenable number.

656045656 is an abundant number, since it is smaller than the sum of its proper divisors (798246344).

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

656045656 is a wasteful number, since it uses less digits than its factorization.

656045656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404011 (or 404007 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The square root of 656045656 is about 25613.3882178832. The cubic root of 656045656 is about 868.9164543738.

The spelling of 656045656 in words is "six hundred fifty-six million, forty-five thousand, six hundred fifty-six".