636480165 has 16 divisors (see below), whose sum is σ = 1023998976. Its totient is φ = 337579200.

The previous prime is 636480151. The next prime is 636480181. The reversal of 636480165 is 561084636.

It is not a de Polignac number, because 636480165 - 2⁷ = 636480037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114501 + ... + 119930.

It is an arithmetic number, because the mean of its divisors is an integer number (63999936).

Almost surely, 2^636480165 is an apocalyptic number.

It is an amenable number.

636480165 is a deficient number, since it is larger than the sum of its proper divisors (387518811).

636480165 is a wasteful number, since it uses less digits than its factorization.

636480165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234620.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 636480165 is about 25228.5585200582. The cubic root of 636480165 is about 860.1911261707.

The spelling of 636480165 in words is "six hundred thirty-six million, four hundred eighty thousand, one hundred sixty-five".