256316433871462 has 16 divisors (see below), whose sum is σ = 385446717976320. Its totient is φ = 127834340411592.

The previous prime is 256316433871457. The next prime is 256316433871481. The reversal of 256316433871462 is 264178334613652.

It is a super-2 number, since 2×256316433871462² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256316433871462.

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, 32949538 + ... + 39978805.

It is an arithmetic number, because the mean of its divisors is an integer number (24090419873520).

Almost surely, 2^{256316433871462} is an apocalyptic number.

256316433871462 is a deficient number, since it is larger than the sum of its proper divisors (129130284104858).

256316433871462 is a wasteful number, since it uses less digits than its factorization.

256316433871462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72932787.

The product of its digits is 104509440, while the sum is 61.

The spelling of 256316433871462 in words is "two hundred fifty-six trillion, three hundred sixteen billion, four hundred thirty-three million, eight hundred seventy-one thousand, four hundred sixty-two".