12355664 has 10 divisors (see below), whose sum is σ = 23939130. Its totient is φ = 6177824.

The previous prime is 12355661. The next prime is 12355687. The reversal of 12355664 is 46655321.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 795664 = 3400^2 + 892^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12355664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386099 + ... + 386130.

It is an arithmetic number, because the mean of its divisors is an integer number (2393913).

Almost surely, 2^12355664 is an apocalyptic number.

It is an amenable number.

12355664 is a deficient number, since it is larger than the sum of its proper divisors (11583466).

12355664 is an equidigital number, since it uses as much as digits as its factorization.

12355664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772237 (or 772231 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 12355664 is about 3515.0624461025. The cubic root of 12355664 is about 231.1827168268.

The spelling of 12355664 in words is "twelve million, three hundred fifty-five thousand, six hundred sixty-four".