12512445660 has 432 divisors, whose sum is σ = 45644141088. Its totient is φ = 2749593600.

The previous prime is 12512445629. The next prime is 12512445677. The reversal of 12512445660 is 6654421521.

12512445660 is a `hidden beast` number, since 1 + 2 + 51 + 2 + 44 + 566 + 0 = 666.

It is a super-2 number, since 2×12512445660² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20411514 + ... + 20412126.

It is an arithmetic number, because the mean of its divisors is an integer number (105657734).

Almost surely, 2^12512445660 is an apocalyptic number.

12512445660 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 12512445660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22822070544).

12512445660 is an abundant number, since it is smaller than the sum of its proper divisors (33131695428).

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

12512445660 is a wasteful number, since it uses less digits than its factorization.

12512445660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 12512445660 in words is "twelve billion, five hundred twelve million, four hundred forty-five thousand, six hundred sixty".