12613320556 has 24 divisors (see below), whose sum is σ = 22124268320. Its totient is φ = 6292121472.

The previous prime is 12613320553. The next prime is 12613320557. The reversal of 12613320556 is 65502331621.

It is not an unprimeable number, because it can be changed into a prime (12613320553) 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, 4095025 + ... + 4098103.

Almost surely, 2^12613320556 is an apocalyptic number.

It is an amenable number.

12613320556 is a deficient number, since it is larger than the sum of its proper divisors (9510947764).

12613320556 is a wasteful number, since it uses less digits than its factorization.

12613320556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113 (or 5111 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

It can be divided in two parts, 126133 and 20556, that added together give a square (146689 = 383²).

The spelling of 12613320556 in words is "twelve billion, six hundred thirteen million, three hundred twenty thousand, five hundred fifty-six".