12665296 has 20 divisors (see below), whose sum is σ = 28044832. Its totient is φ = 5427936.

The previous prime is 12665293. The next prime is 12665297. The reversal of 12665296 is 69256621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56430 + ... + 56653.

Almost surely, 2^12665296 is an apocalyptic number.

12665296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12665296 is an abundant number, since it is smaller than the sum of its proper divisors (15379536).

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

12665296 is a wasteful number, since it uses less digits than its factorization.

12665296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113098 (or 113092 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 12665296 is about 3558.8335167580. The cubic root of 12665296 is about 233.0979467489.

The spelling of 12665296 in words is "twelve million, six hundred sixty-five thousand, two hundred ninety-six".