2164013263564 has 6 divisors (see below), whose sum is σ = 3787023211244. Its totient is φ = 1082006631780.

The previous prime is 2164013263553. The next prime is 2164013263583. The reversal of 2164013263564 is 4653623104612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164013263564.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270501657942 + ... + 270501657949.

Almost surely, 2^{2164013263564} is an apocalyptic number.

It is an amenable number.

2164013263564 is a deficient number, since it is larger than the sum of its proper divisors (1623009947680).

2164013263564 is a wasteful number, since it uses less digits than its factorization.

2164013263564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541003315895 (or 541003315893 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 2164013263564 in words is "two trillion, one hundred sixty-four billion, thirteen million, two hundred sixty-three thousand, five hundred sixty-four".