12665028886 has 32 divisors (see below), whose sum is σ = 20200517280. Its totient is φ = 5943974400.

The previous prime is 12665028793. The next prime is 12665028907. The reversal of 12665028886 is 68882056621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4636141 + ... + 4638871.

It is an arithmetic number, because the mean of its divisors is an integer number (631266165).

Almost surely, 2^12665028886 is an apocalyptic number.

12665028886 is a deficient number, since it is larger than the sum of its proper divisors (7535488394).

12665028886 is a wasteful number, since it uses less digits than its factorization.

12665028886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 12665028886 in words is "twelve billion, six hundred sixty-five million, twenty-eight thousand, eight hundred eighty-six".