12666036 has 12 divisors (see below), whose sum is σ = 29554112. Its totient is φ = 4222008.

The previous prime is 12666029. The next prime is 12666047. The reversal of 12666036 is 63066621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12665994 and 12666012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527740 + ... + 527763.

Almost surely, 2^12666036 is an apocalyptic number.

It is an amenable number.

12666036 is an abundant number, since it is smaller than the sum of its proper divisors (16888076).

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

12666036 is a wasteful number, since it uses less digits than its factorization.

12666036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055510 (or 1055508 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 12666036 is about 3558.9374818898. The cubic root of 12666036 is about 233.1024864276.

The spelling of 12666036 in words is "twelve million, six hundred sixty-six thousand, thirty-six".