636166 has 8 divisors (see below), whose sum is σ = 960120. Its totient is φ = 316128.

The previous prime is 636149. The next prime is 636193. The reversal of 636166 is 661636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (120015).

2⁶³⁶¹⁶⁶ is an apocalyptic number.

636166 is a deficient number, since it is larger than the sum of its proper divisors (323954).

636166 is a wasteful number, since it uses less digits than its factorization.

636166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its digits is 3888, while the sum is 28.

The square root of 636166 is about 797.6001504513. The cubic root of 636166 is about 86.0049573490.

The spelling of 636166 in words is "six hundred thirty-six thousand, one hundred sixty-six".