656065612 has 24 divisors (see below), whose sum is σ = 1164262400. Its totient is φ = 323431056.

The previous prime is 656065601. The next prime is 656065633. The reversal of 656065612 is 216560656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448939 + ... + 450397.

Almost surely, 2^656065612 is an apocalyptic number.

It is an amenable number.

656065612 is a deficient number, since it is larger than the sum of its proper divisors (508196788).

656065612 is a wasteful number, since it uses less digits than its factorization.

656065612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 656065612 is about 25613.7777768138. Note that the first 5 decimals coincide. The cubic root of 656065612 is about 868.9252646960.

The spelling of 656065612 in words is "six hundred fifty-six million, sixty-five thousand, six hundred twelve".