12966156 has 60 divisors (see below), whose sum is σ = 38745168. Its totient is φ = 3703968.

The previous prime is 12966139. The next prime is 12966157. The reversal of 12966156 is 65166921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12966156.

It is not an unprimeable number, because it can be changed into a prime (12966157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 591 + ... + 5126.

Almost surely, 2^12966156 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 12966156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19372584).

12966156 is an abundant number, since it is smaller than the sum of its proper divisors (25779012).

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

12966156 is a wasteful number, since it uses less digits than its factorization.

12966156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740 (or 5729 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 12966156 is about 3600.8548984929. The cubic root of 12966156 is about 234.9292438257.

The spelling of 12966156 in words is "twelve million, nine hundred sixty-six thousand, one hundred fifty-six".