656201612 has 24 divisors (see below), whose sum is σ = 1258286400. Its totient is φ = 296954960.

The previous prime is 656201591. The next prime is 656201653. The reversal of 656201612 is 216102656.

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, 22862 + ... + 42837.

It is an arithmetic number, because the mean of its divisors is an integer number (52428600).

Almost surely, 2^656201612 is an apocalyptic number.

It is an amenable number.

656201612 is a deficient number, since it is larger than the sum of its proper divisors (602084788).

656201612 is a wasteful number, since it uses less digits than its factorization.

656201612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65941 (or 65939 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 656201612 is about 25616.4324604345. The cubic root of 656201612 is about 868.9853022233.

The spelling of 656201612 in words is "six hundred fifty-six million, two hundred one thousand, six hundred twelve".