256012103503456 has 48 divisors (see below), whose sum is σ = 531782376975360. Its totient is φ = 120987524672640.

The previous prime is 256012103503439. The next prime is 256012103503511. The reversal of 256012103503456 is 654305301210652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488221176 + ... + 488745271.

It is an arithmetic number, because the mean of its divisors is an integer number (11078799520320).

Almost surely, 2^{256012103503456} is an apocalyptic number.

It is an amenable number.

256012103503456 is an abundant number, since it is smaller than the sum of its proper divisors (275770273471904).

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

256012103503456 is a wasteful number, since it uses less digits than its factorization.

256012103503456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976966907 (or 976966899 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 256012103503456 in words is "two hundred fifty-six trillion, twelve billion, one hundred three million, five hundred three thousand, four hundred fifty-six".