12320544105564 has 24 divisors (see below), whose sum is σ = 28748280597120. Its totient is φ = 4106798842224.

The previous prime is 12320544105557. The next prime is 12320544105577. The reversal of 12320544105564 is 46550144502321.

12320544105564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5098384 + ... + 7115799.

It is an arithmetic number, because the mean of its divisors is an integer number (1197845024880).

Almost surely, 2^{12320544105564} is an apocalyptic number.

It is an amenable number.

12320544105564 is an abundant number, since it is smaller than the sum of its proper divisors (16427736491556).

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

12320544105564 is a wasteful number, since it uses less digits than its factorization.

12320544105564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12298249 (or 12298247 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 12320544105564 its reverse (46550144502321), we get a palindrome (58870688607885).

The spelling of 12320544105564 in words is "twelve trillion, three hundred twenty billion, five hundred forty-four million, one hundred five thousand, five hundred sixty-four".