656112912 has 80 divisors (see below), whose sum is σ = 2086116480. Its totient is φ = 173039616.

The previous prime is 656112911. The next prime is 656112937. The reversal of 656112912 is 219211656.

656112912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (656112911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70737 + ... + 79472.

It is an arithmetic number, because the mean of its divisors is an integer number (26076456).

Almost surely, 2^656112912 is an apocalyptic number.

It is an amenable number.

656112912 is an abundant number, since it is smaller than the sum of its proper divisors (1430003568).

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

656112912 is a wasteful number, since it uses less digits than its factorization.

656112912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150240 (or 150234 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 656112912 is about 25614.7010913655. The cubic root of 656112912 is about 868.9461463358.

The spelling of 656112912 in words is "six hundred fifty-six million, one hundred twelve thousand, nine hundred twelve".