216262564144 has 40 divisors (see below), whose sum is σ = 466825978368. Its totient is φ = 96209647680.

The previous prime is 216262564127. The next prime is 216262564153. The reversal of 216262564144 is 441465262612.

It is a self number, because there is not a number n which added to its sum of digits gives 216262564144.

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, 13063692 + ... + 13080235.

Almost surely, 2^216262564144 is an apocalyptic number.

It is an amenable number.

216262564144 is an abundant number, since it is smaller than the sum of its proper divisors (250563414224).

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

216262564144 is a wasteful number, since it uses less digits than its factorization.

216262564144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26143993 (or 26143987 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The spelling of 216262564144 in words is "two hundred sixteen billion, two hundred sixty-two million, five hundred sixty-four thousand, one hundred forty-four".