2163646564402 has 16 divisors (see below), whose sum is σ = 3258331300224. Its totient is φ = 1077538302000.

The previous prime is 2163646564393. The next prime is 2163646564421. The reversal of 2163646564402 is 2044656463612.

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, 1459752 + ... + 2541292.

It is an arithmetic number, because the mean of its divisors is an integer number (203645706264).

Almost surely, 2^{2163646564402} is an apocalyptic number.

2163646564402 is a deficient number, since it is larger than the sum of its proper divisors (1094684735822).

2163646564402 is a wasteful number, since it uses less digits than its factorization.

2163646564402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085505.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 2163646564402 in words is "two trillion, one hundred sixty-three billion, six hundred forty-six million, five hundred sixty-four thousand, four hundred two".