636236020642596 has 384 divisors, whose sum is σ = 1689138979799040. Its totient is φ = 184711917196800.

The previous prime is 636236020642589. The next prime is 636236020642627. The reversal of 636236020642596 is 695246020632636.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 80261888385 + ... + 80261896311.

It is an arithmetic number, because the mean of its divisors is an integer number (4398799426560).

Almost surely, 2^{636236020642596} is an apocalyptic number.

636236020642596 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636236020642596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844569489899520).

636236020642596 is an abundant number, since it is smaller than the sum of its proper divisors (1052902959156444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636236020642596 is a wasteful number, since it uses less digits than its factorization.

636236020642596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9055 (or 9053 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 60.

The spelling of 636236020642596 in words is "six hundred thirty-six trillion, two hundred thirty-six billion, twenty million, six hundred forty-two thousand, five hundred ninety-six".