12664368 has 60 divisors (see below), whose sum is σ = 36598848. Its totient is φ = 4083840.

The previous prime is 12664361. The next prime is 12664369. The reversal of 12664368 is 86346621.

12664368 is a `hidden beast` number, since 1 + 2 + 6 + 643 + 6 + 8 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3046 + ... + 5882.

Almost surely, 2^12664368 is an apocalyptic number.

12664368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12664368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18299424).

12664368 is an abundant number, since it is smaller than the sum of its proper divisors (23934480).

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

12664368 is a wasteful number, since it uses less digits than its factorization.

12664368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2873 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 12664368 is about 3558.7031345702. The cubic root of 12664368 is about 233.0922534966.

The spelling of 12664368 in words is "twelve million, six hundred sixty-four thousand, three hundred sixty-eight".