12566464 has 28 divisors (see below), whose sum is σ = 26023824. Its totient is φ = 6009344.

The previous prime is 12566419. The next prime is 12566473. The reversal of 12566464 is 46466521.

It is a super-3 number, since 3×12566464³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797 + ... + 5740.

Almost surely, 2^12566464 is an apocalyptic number.

It is an amenable number.

12566464 is an abundant number, since it is smaller than the sum of its proper divisors (13457360).

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

12566464 is an equidigital number, since it uses as much as digits as its factorization.

12566464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572 (or 8562 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 12566464 is about 3544.9208735880. The cubic root of 12566464 is about 232.4900462074.

The spelling of 12566464 in words is "twelve million, five hundred sixty-six thousand, four hundred sixty-four".