12635156085 has 64 divisors (see below), whose sum is σ = 21992478720. Its totient is φ = 6172588800.

The previous prime is 12635156081. The next prime is 12635156101. The reversal of 12635156085 is 58065153621.

It is a happy number.

It is not a de Polignac number, because 12635156085 - 2² = 12635156081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12635156081) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1715160 + ... + 1722510.

It is an arithmetic number, because the mean of its divisors is an integer number (343632480).

Almost surely, 2^12635156085 is an apocalyptic number.

12635156085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12635156085 is a deficient number, since it is larger than the sum of its proper divisors (9357322635).

12635156085 is a wasteful number, since it uses less digits than its factorization.

12635156085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 12635156085 in words is "twelve billion, six hundred thirty-five million, one hundred fifty-six thousand, eighty-five".