656264006530 has 128 divisors (see below), whose sum is σ = 1444895262720. Its totient is φ = 211506416640.

The previous prime is 656264006467. The next prime is 656264006561. The reversal of 656264006530 is 35600462656.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5878209 + ... + 5988811.

It is an arithmetic number, because the mean of its divisors is an integer number (11288244240).

Almost surely, 2^656264006530 is an apocalyptic number.

656264006530 is an abundant number, since it is smaller than the sum of its proper divisors (788631256190).

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

656264006530 is a wasteful number, since it uses less digits than its factorization.

656264006530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110824.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 656264006530 in words is "six hundred fifty-six billion, two hundred sixty-four million, six thousand, five hundred thirty".