12544418255 has 4 divisors (see below), whose sum is σ = 15053301912. Its totient is φ = 10035534600.

The previous prime is 12544418239. The next prime is 12544418273. The reversal of 12544418255 is 55281444521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55281444521 = 4679 ⋅11814799.

It is not a de Polignac number, because 12544418255 - 2⁴ = 12544418239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254441821 + ... + 1254441830.

It is an arithmetic number, because the mean of its divisors is an integer number (3763325478).

Almost surely, 2^12544418255 is an apocalyptic number.

12544418255 is a deficient number, since it is larger than the sum of its proper divisors (2508883657).

12544418255 is an equidigital number, since it uses as much as digits as its factorization.

12544418255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508883656.

The product of its digits is 256000, while the sum is 41.

The spelling of 12544418255 in words is "twelve billion, five hundred forty-four million, four hundred eighteen thousand, two hundred fifty-five".