2166992275 has 24 divisors (see below), whose sum is σ = 3232570880. Its totient is φ = 1407728160.

The previous prime is 2166992263. The next prime is 2166992309. The reversal of 2166992275 is 5722996612.

It is not a de Polignac number, because 2166992275 - 2¹¹ = 2166990227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322539 + ... + 329188.

Almost surely, 2^2166992275 is an apocalyptic number.

2166992275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2166992275 is a deficient number, since it is larger than the sum of its proper divisors (1065578605).

2166992275 is a wasteful number, since it uses less digits than its factorization.

2166992275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651763 (or 651758 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 2166992275 is about 46550.9642757269. The cubic root of 2166992275 is about 1294.0541634340.

The spelling of 2166992275 in words is "two billion, one hundred sixty-six million, nine hundred ninety-two thousand, two hundred seventy-five".