12401594452512 has 240 divisors, whose sum is σ = 37810926945792. Its totient is φ = 3983338736640.

The previous prime is 12401594452411. The next prime is 12401594452517. The reversal of 12401594452512 is 21525449510421.

It is a happy number.

12401594452512 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 1 + 5 + 94 + 45 + 2 + 512 = 666.

It is a super-2 number, since 2×12401594452512² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12401594452517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18390813 + ... + 19053219.

Almost surely, 2^{12401594452512} is an apocalyptic number.

12401594452512 is a gapful number since it is divisible by the number (12) 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 12401594452512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18905463472896).

12401594452512 is an abundant number, since it is smaller than the sum of its proper divisors (25409332493280).

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

12401594452512 is a wasteful number, since it uses less digits than its factorization.

12401594452512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662693 (or 662676 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 12401594452512 in words is "twelve trillion, four hundred one billion, five hundred ninety-four million, four hundred fifty-two thousand, five hundred twelve".