12653163256 has 32 divisors (see below), whose sum is σ = 23914135440. Its totient is φ = 6276222208.

The previous prime is 12653163247. The next prime is 12653163283. The reversal of 12653163256 is 65236135621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636540 + ... + 656116.

Almost surely, 2^12653163256 is an apocalyptic number.

It is an amenable number.

12653163256 is a deficient number, since it is larger than the sum of its proper divisors (11260972184).

12653163256 is a wasteful number, since it uses less digits than its factorization.

12653163256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20223 (or 20219 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

Adding to 12653163256 its reverse (65236135621), we get a palindrome (77889298877).

The spelling of 12653163256 in words is "twelve billion, six hundred fifty-three million, one hundred sixty-three thousand, two hundred fifty-six".