2166163442 has 16 divisors (see below), whose sum is σ = 3326637600. Its totient is φ = 1057312032.

The previous prime is 2166163429. The next prime is 2166163453. The reversal of 2166163442 is 2443616612.

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, 179309 + ... + 191007.

It is an arithmetic number, because the mean of its divisors is an integer number (207914850).

Almost surely, 2^2166163442 is an apocalyptic number.

2166163442 is a deficient number, since it is larger than the sum of its proper divisors (1160474158).

2166163442 is a wasteful number, since it uses less digits than its factorization.

2166163442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897.

The product of its digits is 41472, while the sum is 35.

The square root of 2166163442 is about 46542.0609986279. The cubic root of 2166163442 is about 1293.8891587591.

The spelling of 2166163442 in words is "two billion, one hundred sixty-six million, one hundred sixty-three thousand, four hundred forty-two".