2164886916 has 24 divisors (see below), whose sum is σ = 5098615200. Its totient is φ = 714884352.

The previous prime is 2164886903. The next prime is 2164886921. The reversal of 2164886916 is 6196884612.

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, 841741 + ... + 844308.

It is an arithmetic number, because the mean of its divisors is an integer number (212442300).

Almost surely, 2^2164886916 is an apocalyptic number.

It is an amenable number.

2164886916 is an abundant number, since it is smaller than the sum of its proper divisors (2933728284).

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

2164886916 is a wasteful number, since it uses less digits than its factorization.

2164886916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686163 (or 1686161 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 2164886916 is about 46528.3452961740. The cubic root of 2164886916 is about 1293.6349446843.

The spelling of 2164886916 in words is "two billion, one hundred sixty-four million, eight hundred eighty-six thousand, nine hundred sixteen".