636113586641 has 16 divisors (see below), whose sum is σ = 725405321088. Its totient is φ = 552593568000.

The previous prime is 636113586629. The next prime is 636113586653. The reversal of 636113586641 is 146685311636.

It is an interprime number because it is at equal distance from previous prime (636113586629) and next prime (636113586653).

It is a de Polignac number, because none of the positive numbers 2^k-636113586641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 636113586641.

It is not an unprimeable number, because it can be changed into a prime (636113586601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2548466 + ... + 2786916.

It is an arithmetic number, because the mean of its divisors is an integer number (45337832568).

Almost surely, 2^636113586641 is an apocalyptic number.

It is an amenable number.

636113586641 is a deficient number, since it is larger than the sum of its proper divisors (89291734447).

636113586641 is a wasteful number, since it uses less digits than its factorization.

636113586641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250552.

The product of its digits is 1866240, while the sum is 50.

The spelling of 636113586641 in words is "six hundred thirty-six billion, one hundred thirteen million, five hundred eighty-six thousand, six hundred forty-one".