12613505663 has 8 divisors (see below), whose sum is σ = 14080192896. Its totient is φ = 11200152600.

The previous prime is 12613505627. The next prime is 12613505689. The reversal of 12613505663 is 36650531621.

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

It is a cyclic number.

It is not a de Polignac number, because 12613505663 - 2¹⁰ = 12613504639 is a prime.

It is a super-2 number, since 2×12613505663² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613504663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13333043 + ... + 13333988.

It is an arithmetic number, because the mean of its divisors is an integer number (1760024112).

Almost surely, 2^12613505663 is an apocalyptic number.

12613505663 is a deficient number, since it is larger than the sum of its proper divisors (1466687233).

12613505663 is a wasteful number, since it uses less digits than its factorization.

12613505663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26667085.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 12613505663 in words is "twelve billion, six hundred thirteen million, five hundred five thousand, six hundred sixty-three".