636045958065 has 32 divisors (see below), whose sum is σ = 1163097676800. Its totient is φ = 290753313984.

The previous prime is 636045958043. The next prime is 636045958073. The reversal of 636045958065 is 560859540636.

It is not a de Polignac number, because 636045958065 - 2¹⁴ = 636045941681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636045957996 and 636045958014.

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 31 ways as a sum of consecutive naturals, for example, 3297622 + ... + 3485168.

It is an arithmetic number, because the mean of its divisors is an integer number (36346802400).

Almost surely, 2^636045958065 is an apocalyptic number.

It is an amenable number.

636045958065 is a deficient number, since it is larger than the sum of its proper divisors (527051718735).

636045958065 is a wasteful number, since it uses less digits than its factorization.

636045958065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219861.

The product of its (nonzero) digits is 23328000, while the sum is 57.

The spelling of 636045958065 in words is "six hundred thirty-six billion, forty-five million, nine hundred fifty-eight thousand, sixty-five".