636130166 has 16 divisors (see below), whose sum is σ = 1095993600. Its totient is φ = 271256040.

The previous prime is 636130147. The next prime is 636130181. The reversal of 636130166 is 661031636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111380 + ... + 116951.

It is an arithmetic number, because the mean of its divisors is an integer number (68499600).

Almost surely, 2^636130166 is an apocalyptic number.

636130166 is a deficient number, since it is larger than the sum of its proper divisors (459863434).

636130166 is a wasteful number, since it uses less digits than its factorization.

636130166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228539.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 636130166 is about 25221.6210026239. The cubic root of 636130166 is about 860.0334248772.

The spelling of 636130166 in words is "six hundred thirty-six million, one hundred thirty thousand, one hundred sixty-six".