656435164 has 108 divisors (see below), whose sum is σ = 1490121360. Its totient is φ = 252067200.

The previous prime is 656435107. The next prime is 656435173. The reversal of 656435164 is 461534656.

656435164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2110569 + ... + 2110879.

It is an arithmetic number, because the mean of its divisors is an integer number (13797420).

Almost surely, 2^656435164 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 656435164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745060680).

656435164 is an abundant number, since it is smaller than the sum of its proper divisors (833686196).

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

656435164 is a wasteful number, since it uses less digits than its factorization.

656435164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 420 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 656435164 is about 25620.9906912282. The cubic root of 656435164 is about 869.0883849641.

It can be divided in two parts, 65643 and 5164, that added together give a palindrome (70807).

The spelling of 656435164 in words is "six hundred fifty-six million, four hundred thirty-five thousand, one hundred sixty-four".