656434116 has 72 divisors (see below), whose sum is σ = 1881035520. Its totient is φ = 191346624.

The previous prime is 656434091. The next prime is 656434117. The reversal of 656434116 is 611434656.

It is a happy number.

656434116 is a `hidden beast` number, since 6 + 5 + 643 + 4 + 1 + 1 + 6 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (656434117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28020 + ... + 45803.

Almost surely, 2^656434116 is an apocalyptic number.

It is an amenable number.

656434116 is an abundant number, since it is smaller than the sum of its proper divisors (1224601404).

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

656434116 is a wasteful number, since it uses less digits than its factorization.

656434116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73865 (or 73860 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 656434116 is about 25620.9702392396. The cubic root of 656434116 is about 869.0879224635.

The spelling of 656434116 in words is "six hundred fifty-six million, four hundred thirty-four thousand, one hundred sixteen".