12650331636 has 18 divisors (see below), whose sum is σ = 31977227282. Its totient is φ = 4216777200.

The previous prime is 12650331623. The next prime is 12650331641. The reversal of 12650331636 is 63613305621.

12650331636 is a `hidden beast` number, since 1 + 265 + 0 + 331 + 63 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10886835600 + 1763496036 = 104340^2 + 41994^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×12650331636³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 351398101 = 12650331636 / (1 + 2 + 6 + 5 + 0 + 3 + 3 + 1 + 6 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 12650331636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175699015 + ... + 175699086.

Almost surely, 2^12650331636 is an apocalyptic number.

It is an amenable number.

12650331636 is an abundant number, since it is smaller than the sum of its proper divisors (19326895646).

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

12650331636 is a wasteful number, since it uses less digits than its factorization.

12650331636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351398111 (or 351398106 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 12650331636 in words is "twelve billion, six hundred fifty million, three hundred thirty-one thousand, six hundred thirty-six".