234656564520 has 96 divisors (see below), whose sum is σ = 818903541600. Its totient is φ = 53635784832.

The previous prime is 234656564503. The next prime is 234656564609. The reversal of 234656564520 is 25465656432.

It is a self number, because there is not a number n which added to its sum of digits gives 234656564520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19947910 + ... + 19959669.

It is an arithmetic number, because the mean of its divisors is an integer number (8530245225).

Almost surely, 2^234656564520 is an apocalyptic number.

234656564520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234656564520 is an abundant number, since it is smaller than the sum of its proper divisors (584246977080).

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

234656564520 is a wasteful number, since it uses less digits than its factorization.

234656564520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39907607 (or 39907596 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 234656564520 in words is "two hundred thirty-four billion, six hundred fifty-six million, five hundred sixty-four thousand, five hundred twenty".