12144543559 has 16 divisors (see below), whose sum is σ = 13025198592. Its totient is φ = 11293764768.

The previous prime is 12144543547. The next prime is 12144543583. The reversal of 12144543559 is 95534544121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12144543559 - 2⁷ = 12144543431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144543259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257222 + ... + 1266844.

It is an arithmetic number, because the mean of its divisors is an integer number (814074912).

Almost surely, 2^12144543559 is an apocalyptic number.

12144543559 is a deficient number, since it is larger than the sum of its proper divisors (880655033).

12144543559 is a wasteful number, since it uses less digits than its factorization.

12144543559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11166.

The product of its digits is 432000, while the sum is 43.

The spelling of 12144543559 in words is "twelve billion, one hundred forty-four million, five hundred forty-three thousand, five hundred fifty-nine".