12043616256 has 204 divisors, whose sum is σ = 39776378512. Its totient is φ = 3439853568.

The previous prime is 12043616237. The next prime is 12043616269. The reversal of 12043616256 is 65261634021.

12043616256 is a `hidden beast` number, since 1 + 20 + 4 + 3 + 6 + 1 + 625 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12043616256.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4127310 + ... + 4130226.

Almost surely, 2^12043616256 is an apocalyptic number.

12043616256 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 12043616256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19888189256).

12043616256 is an abundant number, since it is smaller than the sum of its proper divisors (27732762256).

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

12043616256 is an frugal number, since it uses more digits than its factorization.

12043616256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2929 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12043616256 in words is "twelve billion, forty-three million, six hundred sixteen thousand, two hundred fifty-six".