13612656663 has 8 divisors (see below), whose sum is σ = 20166898800. Its totient is φ = 9075104424.

The previous prime is 13612656649. The next prime is 13612656683. The reversal of 13612656663 is 36665621631.

It is not a de Polignac number, because 13612656663 - 2²⁴ = 13595879447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13612656623) 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, 252086208 + ... + 252086261.

It is an arithmetic number, because the mean of its divisors is an integer number (2520862350).

Almost surely, 2^13612656663 is an apocalyptic number.

13612656663 is a deficient number, since it is larger than the sum of its proper divisors (6554242137).

13612656663 is an equidigital number, since it uses as much as digits as its factorization.

13612656663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504172478 (or 504172472 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 13612656663 in words is "thirteen billion, six hundred twelve million, six hundred fifty-six thousand, six hundred sixty-three".