636342481201 has 12 divisors (see below), whose sum is σ = 741952638720. Its totient is φ = 544170880680.

The previous prime is 636342481171. The next prime is 636342481207. The reversal of 636342481201 is 102184243636.

It is not a de Polignac number, because 636342481201 - 2⁹ = 636342480689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636342481207) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 15044521 + ... + 15086758.

It is an arithmetic number, because the mean of its divisors is an integer number (61829386560).

Almost surely, 2^636342481201 is an apocalyptic number.

It is an amenable number.

636342481201 is a deficient number, since it is larger than the sum of its proper divisors (105610157519).

636342481201 is a wasteful number, since it uses less digits than its factorization.

636342481201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30131724 (or 30131717 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 636342481201 in words is "six hundred thirty-six billion, three hundred forty-two million, four hundred eighty-one thousand, two hundred one".