12072561562488 has 128 divisors (see below), whose sum is σ = 34641946483200. Its totient is φ = 3434431021056.

The previous prime is 12072561562423. The next prime is 12072561562493. The reversal of 12072561562488 is 88426516527021.

It is a happy number.

It is a congruent number.

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, 61185720 + ... + 61382712.

It is an arithmetic number, because the mean of its divisors is an integer number (270640206900).

Almost surely, 2^{12072561562488} 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 12072561562488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17320973241600).

12072561562488 is an abundant number, since it is smaller than the sum of its proper divisors (22569384920712).

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

12072561562488 is a wasteful number, since it uses less digits than its factorization.

12072561562488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198581 (or 198577 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 12072561562488 in words is "twelve trillion, seventy-two billion, five hundred sixty-one million, five hundred sixty-two thousand, four hundred eighty-eight".