2156316444264 has 32 divisors (see below), whose sum is σ = 5391387781920. Its totient is φ = 718692591936.

The previous prime is 2156316444259. The next prime is 2156316444299. The reversal of 2156316444264 is 4624446136512.

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, 4750707 + ... + 5184770.

It is an arithmetic number, because the mean of its divisors is an integer number (168480868185).

Almost surely, 2^{2156316444264} is an apocalyptic number.

2156316444264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2156316444264 is an abundant number, since it is smaller than the sum of its proper divisors (3235071337656).

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

2156316444264 is a wasteful number, since it uses less digits than its factorization.

2156316444264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944529 (or 9944525 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 48.

The spelling of 2156316444264 in words is "two trillion, one hundred fifty-six billion, three hundred sixteen million, four hundred forty-four thousand, two hundred sixty-four".