12545781703056 has 120 divisors (see below), whose sum is σ = 40163370671424. Its totient is φ = 3581223217920.

The previous prime is 12545781703019. The next prime is 12545781703079. The reversal of 12545781703056 is 65030718754521.

12545781703056 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 578 + 17 + 0 + 3 + 0 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12545781702993 and 12545781703011.

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 23 ways as a sum of consecutive naturals, for example, 4604311 + ... + 6803766.

Almost surely, 2^{12545781703056} is an apocalyptic number.

12545781703056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12545781703056 is an abundant number, since it is smaller than the sum of its proper divisors (27617588968368).

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

12545781703056 is a wasteful number, since it uses less digits than its factorization.

12545781703056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409189 (or 11409180 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 12545781703056 in words is "twelve trillion, five hundred forty-five billion, seven hundred eighty-one million, seven hundred three thousand, fifty-six".