12515589997452 has 96 divisors (see below), whose sum is σ = 32498791395840. Its totient is φ = 4165314995520.

The previous prime is 12515589997381. The next prime is 12515589997483. The reversal of 12515589997452 is 25479998551521.

12515589997452 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 5 + 5 + 89 + 9 + 97 + 452 = 666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 217531513 + ... + 217589039.

It is an arithmetic number, because the mean of its divisors is an integer number (338529077040).

Almost surely, 2^{12515589997452} is an apocalyptic number.

12515589997452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12515589997452 is an abundant number, since it is smaller than the sum of its proper divisors (19983201398388).

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

12515589997452 is a wasteful number, since it uses less digits than its factorization.

12515589997452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60668 (or 60660 counting only the distinct ones).

The product of its digits is 408240000, while the sum is 72.

The spelling of 12515589997452 in words is "twelve trillion, five hundred fifteen billion, five hundred eighty-nine million, nine hundred ninety-seven thousand, four hundred fifty-two".