12566925665280 has 3168 divisors, whose sum is σ = 55776519751680. Its totient is φ = 2601123840000.

The previous prime is 12566925665267. The next prime is 12566925665297. The reversal of 12566925665280 is 8256652966521.

12566925665280 is a `hidden beast` number, since 1 + 2 + 5 + 6 + 69 + 2 + 566 + 5 + 2 + 8 + 0 = 666.

12566925665280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 83224673205 + ... + 83224673355.

Almost surely, 2^{12566925665280} is an apocalyptic number.

12566925665280 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 12566925665280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27888259875840).

12566925665280 is an abundant number, since it is smaller than the sum of its proper divisors (43209594086400).

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

12566925665280 is a wasteful number, since it uses less digits than its factorization.

12566925665280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 63.

The spelling of 12566925665280 in words is "twelve trillion, five hundred sixty-six billion, nine hundred twenty-five million, six hundred sixty-five thousand, two hundred eighty".