12036544656 has 40 divisors (see below), whose sum is σ = 32166631680. Its totient is φ = 3873830016.

The previous prime is 12036544579. The next prime is 12036544661. The reversal of 12036544656 is 65644563021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4322080 + ... + 4324863.

It is an arithmetic number, because the mean of its divisors is an integer number (804165792).

Almost surely, 2^12036544656 is an apocalyptic number.

12036544656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12036544656 is an abundant number, since it is smaller than the sum of its proper divisors (20130087024).

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

12036544656 is a wasteful number, since it uses less digits than its factorization.

12036544656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8646983 (or 8646977 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 12036544656 in words is "twelve billion, thirty-six million, five hundred forty-four thousand, six hundred fifty-six".