136311515985 has 16 divisors (see below), whose sum is σ = 229577290560. Its totient is φ = 68873186880.

The previous prime is 136311515959. The next prime is 136311516001. The reversal of 136311515985 is 589515113631.

It is not a de Polignac number, because 136311515985 - 2¹⁶ = 136311450449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239142726 + ... + 239143295.

It is an arithmetic number, because the mean of its divisors is an integer number (14348580660).

Almost surely, 2^136311515985 is an apocalyptic number.

136311515985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136311515985 is a deficient number, since it is larger than the sum of its proper divisors (93265774575).

136311515985 is a wasteful number, since it uses less digits than its factorization.

136311515985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478286048.

The product of its digits is 486000, while the sum is 48.

The spelling of 136311515985 in words is "one hundred thirty-six billion, three hundred eleven million, five hundred fifteen thousand, nine hundred eighty-five".