12628166572 has 48 divisors (see below), whose sum is σ = 26099906560. Its totient is φ = 5237142480.

The previous prime is 12628166549. The next prime is 12628166587. The reversal of 12628166572 is 27566182621.

12628166572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826579 + ... + 841717.

Almost surely, 2^12628166572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12628166572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13049953280).

12628166572 is an abundant number, since it is smaller than the sum of its proper divisors (13471739988).

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

12628166572 is an equidigital number, since it uses as much as digits as its factorization.

12628166572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15243 (or 15179 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The spelling of 12628166572 in words is "twelve billion, six hundred twenty-eight million, one hundred sixty-six thousand, five hundred seventy-two".