12650644216 has 32 divisors (see below), whose sum is σ = 27115079040. Its totient is φ = 5420393568.

The previous prime is 12650644187. The next prime is 12650644217. The reversal of 12650644216 is 61244605621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650644217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227331 + ... + 277453.

It is an arithmetic number, because the mean of its divisors is an integer number (847346220).

Almost surely, 2^12650644216 is an apocalyptic number.

It is an amenable number.

12650644216 is an abundant number, since it is smaller than the sum of its proper divisors (14464434824).

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

12650644216 is a wasteful number, since it uses less digits than its factorization.

12650644216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54643 (or 54639 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 12650644216 in words is "twelve billion, six hundred fifty million, six hundred forty-four thousand, two hundred sixteen".