12645336255 has 16 divisors (see below), whose sum is σ = 20266329600. Its totient is φ = 6732915488.

The previous prime is 12645336239. The next prime is 12645336269. The reversal of 12645336255 is 55263354621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12645336255 - 2⁴ = 12645336239 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 694707 + ... + 712676.

It is an arithmetic number, because the mean of its divisors is an integer number (1266645600).

Almost surely, 2^12645336255 is an apocalyptic number.

12645336255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12645336255 is a deficient number, since it is larger than the sum of its proper divisors (7620993345).

12645336255 is a wasteful number, since it uses less digits than its factorization.

12645336255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407990.

The product of its digits is 648000, while the sum is 42.

The spelling of 12645336255 in words is "twelve billion, six hundred forty-five million, three hundred thirty-six thousand, two hundred fifty-five".