12156966 has 40 divisors (see below), whose sum is σ = 27547344. Its totient is φ = 4006800.

The previous prime is 12156899. The next prime is 12156983. The reversal of 12156966 is 66965121.

It is a self number, because there is not a number n which added to its sum of digits gives 12156966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15991 + ... + 16733.

Almost surely, 2^12156966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12156966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13773672).

12156966 is an abundant number, since it is smaller than the sum of its proper divisors (15390378).

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

12156966 is a wasteful number, since it uses less digits than its factorization.

12156966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 849 counting only the distinct ones).

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

The square root of 12156966 is about 3486.6840981081. The cubic root of 12156966 is about 229.9367563984.

The spelling of 12156966 in words is "twelve million, one hundred fifty-six thousand, nine hundred sixty-six".