12544005332 has 12 divisors (see below), whose sum is σ = 22708975380. Its totient is φ = 6055726656.

The previous prime is 12544005329. The next prime is 12544005337. The reversal of 12544005332 is 23350044521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2315919376 + 10228085956 = 48124^2 + 101134^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 12544005295 and 12544005304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544005337) 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 3 ways as a sum of consecutive naturals, for example, 54068873 + ... + 54069104.

It is an arithmetic number, because the mean of its divisors is an integer number (1892414615).

Almost surely, 2^12544005332 is an apocalyptic number.

It is an amenable number.

12544005332 is a deficient number, since it is larger than the sum of its proper divisors (10164970048).

12544005332 is a wasteful number, since it uses less digits than its factorization.

12544005332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108138010 (or 108138008 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 12544005332 its reverse (23350044521), we get a palindrome (35894049853).

The spelling of 12544005332 in words is "twelve billion, five hundred forty-four million, five thousand, three hundred thirty-two".