636115624036656 has 80 divisors (see below), whose sum is σ = 1743809964376320. Its totient is φ = 199381856101120.

The previous prime is 636115624036637. The next prime is 636115624036681. The reversal of 636115624036656 is 656630426511636.

It is a self number, because there is not a number n which added to its sum of digits gives 636115624036656.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4882915275 + ... + 4883045546.

It is an arithmetic number, because the mean of its divisors is an integer number (21797624554704).

Almost surely, 2^{636115624036656} is an apocalyptic number.

It is an amenable number.

636115624036656 is an abundant number, since it is smaller than the sum of its proper divisors (1107694340339664).

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

636115624036656 is a wasteful number, since it uses less digits than its factorization.

636115624036656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9765960914 (or 9765960908 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 60.

The spelling of 636115624036656 in words is "six hundred thirty-six trillion, one hundred fifteen billion, six hundred twenty-four million, thirty-six thousand, six hundred fifty-six".