264441130421256 has 128 divisors (see below), whose sum is σ = 735126224400000. Its totient is φ = 88078952634624.

The previous prime is 264441130421239. The next prime is 264441130421269. The reversal of 264441130421256 is 652124031144462.

264441130421256 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 41 + 130 + 421 + 2 + 56 = 666.

It is a super-2 number, since 2×264441130421256² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3513990126 + ... + 3514065378.

It is an arithmetic number, because the mean of its divisors is an integer number (5743173628125).

Almost surely, 2^{264441130421256} is an apocalyptic number.

It is an amenable number.

264441130421256 is an abundant number, since it is smaller than the sum of its proper divisors (470685093978744).

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

264441130421256 is a wasteful number, since it uses less digits than its factorization.

264441130421256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87620 (or 87610 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 264441130421256 in words is "two hundred sixty-four trillion, four hundred forty-one billion, one hundred thirty million, four hundred twenty-one thousand, two hundred fifty-six".