12663755916 has 96 divisors (see below), whose sum is σ = 34419463680. Its totient is φ = 3548966400.

The previous prime is 12663755903. The next prime is 12663755927. The reversal of 12663755916 is 61955736621.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1938736 + ... + 1945256.

It is an arithmetic number, because the mean of its divisors is an integer number (358536080).

Almost surely, 2^12663755916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12663755916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17209731840).

12663755916 is an abundant number, since it is smaller than the sum of its proper divisors (21755707764).

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

12663755916 is a wasteful number, since it uses less digits than its factorization.

12663755916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975 (or 6973 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 51.

The spelling of 12663755916 in words is "twelve billion, six hundred sixty-three million, seven hundred fifty-five thousand, nine hundred sixteen".