99870166 has 32 divisors (see below), whose sum is σ = 168398208. Its totient is φ = 44029440.

The previous prime is 99870149. The next prime is 99870167. The reversal of 99870166 is 66107899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99870167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182305 + ... + 182851.

It is an arithmetic number, because the mean of its divisors is an integer number (5262444).

Almost surely, 2^99870166 is an apocalyptic number.

99870166 is a deficient number, since it is larger than the sum of its proper divisors (68528042).

99870166 is a wasteful number, since it uses less digits than its factorization.

99870166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 99870166 is about 9993.5061915226. The cubic root of 99870166 is about 463.9579176807.

The spelling of 99870166 in words is "ninety-nine million, eight hundred seventy thousand, one hundred sixty-six".