12665036216 has 16 divisors (see below), whose sum is σ = 27139363440. Its totient is φ = 5427872640.

The previous prime is 12665036213. The next prime is 12665036239. The reversal of 12665036216 is 61263056621.

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 12665036216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665036213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113080625 + ... + 113080736.

It is an arithmetic number, because the mean of its divisors is an integer number (1696210215).

Almost surely, 2^12665036216 is an apocalyptic number.

It is an amenable number.

12665036216 is an abundant number, since it is smaller than the sum of its proper divisors (14474327224).

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

12665036216 is a wasteful number, since it uses less digits than its factorization.

12665036216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226161374 (or 226161370 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 12665036216 in words is "twelve billion, six hundred sixty-five million, thirty-six thousand, two hundred sixteen".