100820166 has 32 divisors (see below), whose sum is σ = 214617600. Its totient is φ = 31464576.

The previous prime is 100820147. The next prime is 100820173. The reversal of 100820166 is 661028001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17815 + ... + 22781.

It is an arithmetic number, because the mean of its divisors is an integer number (6706800).

Almost surely, 2^100820166 is an apocalyptic number.

100820166 is an abundant number, since it is smaller than the sum of its proper divisors (113797434).

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

100820166 is a wasteful number, since it uses less digits than its factorization.

100820166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 100820166 is about 10040.9245590234. The cubic root of 100820166 is about 465.4243876783.

Adding to 100820166 its reverse (661028001), we get a palindrome (761848167).

The spelling of 100820166 in words is "one hundred million, eight hundred twenty thousand, one hundred sixty-six".