136660757065 has 16 divisors (see below), whose sum is σ = 187892577792. Its totient is φ = 93474177984.

The previous prime is 136660757047. The next prime is 136660757153. The reversal of 136660757065 is 560757066631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 136660757065 - 2⁹ = 136660756553 is a prime.

It is a Duffinian number.

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, 4903729 + ... + 4931518.

It is an arithmetic number, because the mean of its divisors is an integer number (11743286112).

Almost surely, 2^136660757065 is an apocalyptic number.

It is an amenable number.

136660757065 is a deficient number, since it is larger than the sum of its proper divisors (51231820727).

136660757065 is an equidigital number, since it uses as much as digits as its factorization.

136660757065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835656.

The product of its (nonzero) digits is 4762800, while the sum is 52.

The spelling of 136660757065 in words is "one hundred thirty-six billion, six hundred sixty million, seven hundred fifty-seven thousand, sixty-five".