163801166 has 16 divisors (see below), whose sum is σ = 259958160. Its totient is φ = 77192640.

The previous prime is 163801159. The next prime is 163801177. The reversal of 163801166 is 661108361.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455 + ... + 18426.

It is an arithmetic number, because the mean of its divisors is an integer number (16247385).

Almost surely, 2^163801166 is an apocalyptic number.

163801166 is a deficient number, since it is larger than the sum of its proper divisors (96156994).

163801166 is a wasteful number, since it uses less digits than its factorization.

163801166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22099.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 163801166 is about 12798.4829569758. The cubic root of 163801166 is about 547.1490669644.

The spelling of 163801166 in words is "one hundred sixty-three million, eight hundred one thousand, one hundred sixty-six".