12523520564 has 12 divisors (see below), whose sum is σ = 22001439684. Its totient is φ = 6237394944.

The previous prime is 12523520557. The next prime is 12523520591. The reversal of 12523520564 is 46502532521.

12523520564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10232940964 + 2290579600 = 101158^2 + 47860^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6090179 + ... + 6092234.

It is an arithmetic number, because the mean of its divisors is an integer number (1833453307).

Almost surely, 2^12523520564 is an apocalyptic number.

It is an amenable number.

12523520564 is a deficient number, since it is larger than the sum of its proper divisors (9477919120).

12523520564 is a wasteful number, since it uses less digits than its factorization.

12523520564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182674 (or 12182672 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 12523520564 in words is "twelve billion, five hundred twenty-three million, five hundred twenty thousand, five hundred sixty-four".