12665610223 has 8 divisors (see below), whose sum is σ = 14610264192. Its totient is φ = 10754776536.

The previous prime is 12665610211. The next prime is 12665610229. The reversal of 12665610223 is 32201656621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12665610223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665610229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8454265 + ... + 8455762.

It is an arithmetic number, because the mean of its divisors is an integer number (1826283024).

Almost surely, 2^12665610223 is an apocalyptic number.

12665610223 is a deficient number, since it is larger than the sum of its proper divisors (1944653969).

12665610223 is a wasteful number, since it uses less digits than its factorization.

12665610223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16910141.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12665610223 in words is "twelve billion, six hundred sixty-five million, six hundred ten thousand, two hundred twenty-three".