12521470063680 has 336 divisors, whose sum is σ = 43211791534080. Its totient is φ = 3327971733504.

The previous prime is 12521470063679. The next prime is 12521470063693. The reversal of 12521470063680 is 8636007412521.

12521470063680 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 1 + 4 + 7 + 0 + 0 + 636 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 2873872062 + ... + 2873876418.

Almost surely, 2^{12521470063680} is an apocalyptic number.

12521470063680 is a gapful number since it is divisible by the number (10) 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 12521470063680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21605895767040).

12521470063680 is an abundant number, since it is smaller than the sum of its proper divisors (30690321470400).

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

12521470063680 is a wasteful number, since it uses less digits than its factorization.

12521470063680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7466 (or 7453 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 12521470063680 in words is "twelve trillion, five hundred twenty-one billion, four hundred seventy million, sixty-three thousand, six hundred eighty".