12966318 has 20 divisors (see below), whose sum is σ = 29054520. Its totient is φ = 4322052.

The previous prime is 12966311. The next prime is 12966323. The reversal of 12966318 is 81366921.

12966318 is a `hidden beast` number, since 12 + 9 + 6 + 631 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12966311) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39858 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (1452726).

Almost surely, 2^12966318 is an apocalyptic number.

12966318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12966318 is an abundant number, since it is smaller than the sum of its proper divisors (16088202).

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

12966318 is an equidigital number, since it uses as much as digits as its factorization.

12966318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80053 (or 80044 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12966318 is about 3600.8773930807. The cubic root of 12966318 is about 234.9302222287.

The spelling of 12966318 in words is "twelve million, nine hundred sixty-six thousand, three hundred eighteen".