2256831578516 has 48 divisors (see below), whose sum is σ = 4093536631296. Its totient is φ = 1087853255424.

The previous prime is 2256831578509. The next prime is 2256831578539. The reversal of 2256831578516 is 6158751386522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7590245 + ... + 7881971.

It is an arithmetic number, because the mean of its divisors is an integer number (85282013152).

Almost surely, 2^{2256831578516} is an apocalyptic number.

It is an amenable number.

2256831578516 is a deficient number, since it is larger than the sum of its proper divisors (1836705052780).

2256831578516 is a wasteful number, since it uses less digits than its factorization.

2256831578516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292248 (or 292246 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 59.

The spelling of 2256831578516 in words is "two trillion, two hundred fifty-six billion, eight hundred thirty-one million, five hundred seventy-eight thousand, five hundred sixteen".