12647553255 has 12 divisors (see below), whose sum is σ = 21922425720. Its totient is φ = 6745361712.

The previous prime is 12647553253. The next prime is 12647553299. The reversal of 12647553255 is 55235574621.

It is a happy number.

12647553255 is a `hidden beast` number, since 1 + 2 + 6 + 47 + 553 + 2 + 55 = 666.

It is not a de Polignac number, because 12647553255 - 2¹ = 12647553253 is a prime.

It is a super-2 number, since 2×12647553255² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 281056739 = 12647553255 / (1 + 2 + 6 + 4 + 7 + 5 + 5 + 3 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 12647553255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647553251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140528325 + ... + 140528414.

It is an arithmetic number, because the mean of its divisors is an integer number (1826868810).

Almost surely, 2^12647553255 is an apocalyptic number.

12647553255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12647553255 is a deficient number, since it is larger than the sum of its proper divisors (9274872465).

12647553255 is a wasteful number, since it uses less digits than its factorization.

12647553255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281056750 (or 281056747 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The spelling of 12647553255 in words is "twelve billion, six hundred forty-seven million, five hundred fifty-three thousand, two hundred fifty-five".