12615855135 has 16 divisors (see below), whose sum is σ = 21738089184. Its totient is φ = 6210882432.

The previous prime is 12615855101. The next prime is 12615855149. The reversal of 12615855135 is 53155851621.

It is not a de Polignac number, because 12615855135 - 2⁸ = 12615854879 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32348152 + ... + 32348541.

It is an arithmetic number, because the mean of its divisors is an integer number (1358630574).

Almost surely, 2^12615855135 is an apocalyptic number.

12615855135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12615855135 is a deficient number, since it is larger than the sum of its proper divisors (9122234049).

12615855135 is a wasteful number, since it uses less digits than its factorization.

12615855135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64696714.

The product of its digits is 180000, while the sum is 42.

The spelling of 12615855135 in words is "twelve billion, six hundred fifteen million, eight hundred fifty-five thousand, one hundred thirty-five".