2116453615664 has 80 divisors (see below), whose sum is σ = 4314901194720. Its totient is φ = 1004552939520.

The previous prime is 2116453615657. The next prime is 2116453615691. The reversal of 2116453615664 is 4665163546112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5427884 + ... + 5804724.

It is an arithmetic number, because the mean of its divisors is an integer number (53936264934).

Almost surely, 2^{2116453615664} is an apocalyptic number.

It is an amenable number.

2116453615664 is an abundant number, since it is smaller than the sum of its proper divisors (2198447579056).

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

2116453615664 is a wasteful number, since it uses less digits than its factorization.

2116453615664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377118 (or 377112 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

The spelling of 2116453615664 in words is "two trillion, one hundred sixteen billion, four hundred fifty-three million, six hundred fifteen thousand, six hundred sixty-four".