12544133545 has 16 divisors (see below), whose sum is σ = 16144194240. Its totient is φ = 9327749184.

The previous prime is 12544133501. The next prime is 12544133561. The reversal of 12544133545 is 54533144521.

12544133545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12544133545 - 2¹³ = 12544125353 is a prime.

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, 1240659 + ... + 1250728.

It is an arithmetic number, because the mean of its divisors is an integer number (1009012140).

Almost surely, 2^12544133545 is an apocalyptic number.

It is an amenable number.

12544133545 is a deficient number, since it is larger than the sum of its proper divisors (3600060695).

12544133545 is a wasteful number, since it uses less digits than its factorization.

12544133545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491464.

The product of its digits is 144000, while the sum is 37.

The spelling of 12544133545 in words is "twelve billion, five hundred forty-four million, one hundred thirty-three thousand, five hundred forty-five".