12564201432 has 32 divisors (see below), whose sum is σ = 31618529280. Its totient is φ = 4160330400.

The previous prime is 12564201379. The next prime is 12564201439. The reversal of 12564201432 is 23410246521.

It is a self number, because there is not a number n which added to its sum of digits gives 12564201432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564201439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729848 + ... + 1737095.

It is an arithmetic number, because the mean of its divisors is an integer number (988079040).

Almost surely, 2^12564201432 is an apocalyptic number.

12564201432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12564201432 is an abundant number, since it is smaller than the sum of its proper divisors (19054327848).

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

12564201432 is a wasteful number, since it uses less digits than its factorization.

12564201432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467103 (or 3467099 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12564201432 its reverse (23410246521), we get a palindrome (35974447953).

The spelling of 12564201432 in words is "twelve billion, five hundred sixty-four million, two hundred one thousand, four hundred thirty-two".