12525446664028 has 24 divisors (see below), whose sum is σ = 22909144381200. Its totient is φ = 5984429541888.

The previous prime is 12525446664013. The next prime is 12525446664047. The reversal of 12525446664028 is 82046664452521.

It is a self number, because there is not a number n which added to its sum of digits gives 12525446664028.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556576318 + ... + 556598821.

It is an arithmetic number, because the mean of its divisors is an integer number (954547682550).

Almost surely, 2^{12525446664028} is an apocalyptic number.

It is an amenable number.

12525446664028 is a deficient number, since it is larger than the sum of its proper divisors (10383697717172).

12525446664028 is a wasteful number, since it uses less digits than its factorization.

12525446664028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113175269 (or 1113175267 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 55.

The spelling of 12525446664028 in words is "twelve trillion, five hundred twenty-five billion, four hundred forty-six million, six hundred sixty-four thousand, twenty-eight".