2164602111656 has 64 divisors (see below), whose sum is σ = 4227313147200. Its totient is φ = 1038252354048.

The previous prime is 2164602111653. The next prime is 2164602111673. The reversal of 2164602111656 is 6561112064612.

It is a super-2 number, since 2×2164602111656² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2164602111653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22134740 + ... + 22232316.

It is an arithmetic number, because the mean of its divisors is an integer number (66051767925).

Almost surely, 2^{2164602111656} is an apocalyptic number.

It is an amenable number.

2164602111656 is a deficient number, since it is larger than the sum of its proper divisors (2062711035544).

2164602111656 is a wasteful number, since it uses less digits than its factorization.

2164602111656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98778 (or 98774 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 2164602111656 in words is "two trillion, one hundred sixty-four billion, six hundred two million, one hundred eleven thousand, six hundred fifty-six".