12660563322 has 48 divisors (see below), whose sum is σ = 31499975520. Its totient is φ = 3634610400.

The previous prime is 12660563299. The next prime is 12660563329. The reversal of 12660563322 is 22336506621.

12660563322 is a `hidden beast` number, since 1 + 2 + 6 + 60 + 563 + 32 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12660563329) 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 23 ways as a sum of consecutive naturals, for example, 1678929 + ... + 1686452.

It is an arithmetic number, because the mean of its divisors is an integer number (656249490).

Almost surely, 2^12660563322 is an apocalyptic number.

12660563322 is an abundant number, since it is smaller than the sum of its proper divisors (18839412198).

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

12660563322 is a wasteful number, since it uses less digits than its factorization.

12660563322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365419 (or 3365416 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 12660563322 in words is "twelve billion, six hundred sixty million, five hundred sixty-three thousand, three hundred twenty-two".