12618116736 has 128 divisors (see below), whose sum is σ = 33834379200. Its totient is φ = 4166443008.

The previous prime is 12618116723. The next prime is 12618116741. The reversal of 12618116736 is 63761181621.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33292995 + ... + 33293373.

Almost surely, 2^12618116736 is an apocalyptic number.

12618116736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12618116736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16917189600).

12618116736 is an abundant number, since it is smaller than the sum of its proper divisors (21216262464).

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

12618116736 is a wasteful number, since it uses less digits than its factorization.

12618116736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 974 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The spelling of 12618116736 in words is "twelve billion, six hundred eighteen million, one hundred sixteen thousand, seven hundred thirty-six".