12515853168 has 240 divisors, whose sum is σ = 43207790080. Its totient is φ = 3293415936.

The previous prime is 12515853143. The next prime is 12515853173. The reversal of 12515853168 is 86135851521.

12515853168 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 58 + 531 + 68 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8110605 + ... + 8112147.

Almost surely, 2^12515853168 is an apocalyptic number.

12515853168 is a gapful number since it is divisible by the number (18) 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 12515853168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21603895040).

12515853168 is an abundant number, since it is smaller than the sum of its proper divisors (30691936912).

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

12515853168 is a wasteful number, since it uses less digits than its factorization.

12515853168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2187 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The spelling of 12515853168 in words is "twelve billion, five hundred fifteen million, eight hundred fifty-three thousand, one hundred sixty-eight".