2166877236 has 24 divisors (see below), whose sum is σ = 5060604640. Its totient is φ = 721641312.

The previous prime is 2166877231. The next prime is 2166877243. The reversal of 2166877236 is 6327786612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166877231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67426 + ... + 94233.

Almost surely, 2^2166877236 is an apocalyptic number.

It is an amenable number.

2166877236 is an abundant number, since it is smaller than the sum of its proper divisors (2893727404).

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

2166877236 is a wasteful number, since it uses less digits than its factorization.

2166877236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162783 (or 162781 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 2166877236 is about 46549.7286350844. The cubic root of 2166877236 is about 1294.0312639013.

The spelling of 2166877236 in words is "two billion, one hundred sixty-six million, eight hundred seventy-seven thousand, two hundred thirty-six".