12664266 has 16 divisors (see below), whose sum is σ = 25373088. Its totient is φ = 4214000.

The previous prime is 12664261. The next prime is 12664277. The reversal of 12664266 is 66246621.

12664266 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 (12664261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2701 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (1585818).

Almost surely, 2^12664266 is an apocalyptic number.

12664266 is an abundant number, since it is smaller than the sum of its proper divisors (12708822).

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

12664266 is a wasteful number, since it uses less digits than its factorization.

12664266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717.

The product of its digits is 20736, while the sum is 33.

The square root of 12664266 is about 3558.6888034780. The cubic root of 12664266 is about 233.0916277127.

The spelling of 12664266 in words is "twelve million, six hundred sixty-four thousand, two hundred sixty-six".