2256323566564 has 12 divisors (see below), whose sum is σ = 4084723698300. Its totient is φ = 1089259652768.

The previous prime is 2256323566507. The next prime is 2256323566589. The reversal of 2256323566564 is 4656653236522.

It can be written as a sum of positive squares in 2 ways, for example, as 1245478320100 + 1010845246464 = 1116010^2 + 1005408^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9725532499 + ... + 9725532730.

It is an arithmetic number, because the mean of its divisors is an integer number (340393641525).

Almost surely, 2^{2256323566564} is an apocalyptic number.

It is an amenable number.

2256323566564 is a deficient number, since it is larger than the sum of its proper divisors (1828400131736).

2256323566564 is a wasteful number, since it uses less digits than its factorization.

2256323566564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19451065262 (or 19451065260 counting only the distinct ones).

The product of its digits is 46656000, while the sum is 55.

The spelling of 2256323566564 in words is "two trillion, two hundred fifty-six billion, three hundred twenty-three million, five hundred sixty-six thousand, five hundred sixty-four".