636604613132 has 24 divisors (see below), whose sum is σ = 1127246450400. Its totient is φ = 314544130560.

The previous prime is 636604613093. The next prime is 636604613153. The reversal of 636604613132 is 231316406636.

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 636604613132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984632 + ... + 1497567.

It is an arithmetic number, because the mean of its divisors is an integer number (46968602100).

Almost surely, 2^636604613132 is an apocalyptic number.

It is an amenable number.

636604613132 is a deficient number, since it is larger than the sum of its proper divisors (490641837268).

636604613132 is a wasteful number, since it uses less digits than its factorization.

636604613132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482961 (or 2482959 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 636604613132 in words is "six hundred thirty-six billion, six hundred four million, six hundred thirteen thousand, one hundred thirty-two".