12564045240 has 64 divisors (see below), whose sum is σ = 37887501600. Its totient is φ = 3333046272.

The previous prime is 12564045239. The next prime is 12564045271. The reversal of 12564045240 is 4254046521.

12564045240 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248085 + ... + 294404.

Almost surely, 2^12564045240 is an apocalyptic number.

12564045240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12564045240 is an abundant number, since it is smaller than the sum of its proper divisors (25323456360).

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

12564045240 is a wasteful number, since it uses less digits than its factorization.

12564045240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542696 (or 542692 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 12564045240 in words is "twelve billion, five hundred sixty-four million, forty-five thousand, two hundred forty".