636001301313642 has 64 divisors (see below), whose sum is σ = 1461647280960000. Its totient is φ = 182462301161280.

The previous prime is 636001301313583. The next prime is 636001301313691. The reversal of 636001301313642 is 246313103100636.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 636001301313642.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167292393 + ... + 171051884.

It is an arithmetic number, because the mean of its divisors is an integer number (22838238765000).

Almost surely, 2^{636001301313642} is an apocalyptic number.

636001301313642 is an abundant number, since it is smaller than the sum of its proper divisors (825645979646358).

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

636001301313642 is a wasteful number, since it uses less digits than its factorization.

636001301313642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338345811.

The product of its (nonzero) digits is 139968, while the sum is 39.

The spelling of 636001301313642 in words is "six hundred thirty-six trillion, one billion, three hundred one million, three hundred thirteen thousand, six hundred forty-two".