12415664 has 20 divisors (see below), whose sum is σ = 25322040. Its totient is φ = 5880960.

The previous prime is 12415657. The next prime is 12415679. The reversal of 12415664 is 46651421.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20117 + ... + 20724.

It is an arithmetic number, because the mean of its divisors is an integer number (1266102).

Almost surely, 2^12415664 is an apocalyptic number.

It is an amenable number.

12415664 is an abundant number, since it is smaller than the sum of its proper divisors (12906376).

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

12415664 is a wasteful number, since it uses less digits than its factorization.

12415664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40868 (or 40862 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 12415664 is about 3523.5868089207. The cubic root of 12415664 is about 231.5563260635.

The spelling of 12415664 in words is "twelve million, four hundred fifteen thousand, six hundred sixty-four".