18100166 has 16 divisors (see below), whose sum is σ = 31258656. Its totient is φ = 7699776.

The previous prime is 18100157. The next prime is 18100169. The reversal of 18100166 is 66100181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18100169) 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, 2801 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (1953666).

Almost surely, 2^18100166 is an apocalyptic number.

18100166 is a deficient number, since it is larger than the sum of its proper divisors (13158490).

18100166 is a wasteful number, since it uses less digits than its factorization.

18100166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 18100166 is about 4254.4289863623. The cubic root of 18100166 is about 262.5593685824.

The spelling of 18100166 in words is "eighteen million, one hundred thousand, one hundred sixty-six".