136605612015 has 24 divisors (see below), whose sum is σ = 237539580720. Its totient is φ = 72623551104.

The previous prime is 136605611953. The next prime is 136605612023. The reversal of 136605612015 is 510216506631.

136605612015 is a `hidden beast` number, since 1 + 3 + 6 + 60 + 561 + 20 + 15 = 666.

It is not a de Polignac number, because 136605612015 - 2⁷ = 136605611887 is a prime.

It is a super-2 number, since 2×136605612015² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4835245 + ... + 4863414.

It is an arithmetic number, because the mean of its divisors is an integer number (9897482530).

Almost surely, 2^136605612015 is an apocalyptic number.

136605612015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136605612015 is a deficient number, since it is larger than the sum of its proper divisors (100933968705).

136605612015 is a wasteful number, since it uses less digits than its factorization.

136605612015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698983 (or 9698980 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 136605612015 in words is "one hundred thirty-six billion, six hundred five million, six hundred twelve thousand, fifteen".