656474112 has 272 divisors, whose sum is σ = 2264906880. Its totient is φ = 184025088.

The previous prime is 656474089. The next prime is 656474123. The reversal of 656474112 is 211474656.

656474112 is a `hidden beast` number, since 6 + 5 + 647 + 4 + 1 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12386278 + ... + 12386330.

Almost surely, 2^656474112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656474112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132453440).

656474112 is an abundant number, since it is smaller than the sum of its proper divisors (1608432768).

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

656474112 is an frugal number, since it uses more digits than its factorization.

656474112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 65 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 656474112 is about 25621.7507598525. The cubic root of 656474112 is about 869.1055730465.

The spelling of 656474112 in words is "six hundred fifty-six million, four hundred seventy-four thousand, one hundred twelve".