12186664 has 16 divisors (see below), whose sum is σ = 26114400. Its totient is φ = 5222832.

The previous prime is 12186659. The next prime is 12186667. The reversal of 12186664 is 46668121.

12186664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12186667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108754 + ... + 108865.

It is an arithmetic number, because the mean of its divisors is an integer number (1632150).

Almost surely, 2^12186664 is an apocalyptic number.

12186664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12186664 is an abundant number, since it is smaller than the sum of its proper divisors (13927736).

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

12186664 is a wasteful number, since it uses less digits than its factorization.

12186664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217632 (or 217628 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 12186664 is about 3490.9402744819. The cubic root of 12186664 is about 230.1238400505.

The spelling of 12186664 in words is "twelve million, one hundred eighty-six thousand, six hundred sixty-four".