12663266 has 48 divisors (see below), whose sum is σ = 25559712. Its totient is φ = 4636800.

The previous prime is 12663263. The next prime is 12663269. The reversal of 12663266 is 66236621.

It is an interprime number because it is at equal distance from previous prime (12663263) and next prime (12663269).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12663263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17981 + ... + 18671.

It is an arithmetic number, because the mean of its divisors is an integer number (532494).

Almost surely, 2^12663266 is an apocalyptic number.

12663266 is an abundant number, since it is smaller than the sum of its proper divisors (12896446).

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

12663266 is a wasteful number, since it uses less digits than its factorization.

12663266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 728 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 12663266 is about 3558.5482995177. The cubic root of 12663266 is about 233.0854923982.

Adding to 12663266 its reverse (66236621), we get a palindrome (78899887).

The spelling of 12663266 in words is "twelve million, six hundred sixty-three thousand, two hundred sixty-six".