12663705318 has 16 divisors (see below), whose sum is σ = 27629902656. Its totient is φ = 3837486440.

The previous prime is 12663705317. The next prime is 12663705319. The reversal of 12663705318 is 81350736621.

It is an interprime number because it is at equal distance from previous prime (12663705317) and next prime (12663705319).

It is a super-2 number, since 2×12663705318² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12663705318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663705317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95937096 + ... + 95937227.

It is an arithmetic number, because the mean of its divisors is an integer number (1726868916).

Almost surely, 2^12663705318 is an apocalyptic number.

12663705318 is an abundant number, since it is smaller than the sum of its proper divisors (14966197338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12663705318 is a wasteful number, since it uses less digits than its factorization.

12663705318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191874339.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 12663705318 in words is "twelve billion, six hundred sixty-three million, seven hundred five thousand, three hundred eighteen".