165818670376136 has 16 divisors (see below), whose sum is σ = 321631041678300. Its totient is φ = 80050392595264.

The previous prime is 165818670376133. The next prime is 165818670376199. The reversal of 165818670376136 is 631673076818561.

It can be written as a sum of positive squares in 2 ways, for example, as 160919220935236 + 4899449440900 = 12685394^2 + 2213470^2 .

It is not an unprimeable number, because it can be changed into a prime (165818670376133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357367823855 + ... + 357367824318.

Almost surely, 2^{165818670376136} is an apocalyptic number.

It is an amenable number.

165818670376136 is a deficient number, since it is larger than the sum of its proper divisors (155812371302164).

165818670376136 is a wasteful number, since it uses less digits than its factorization.

165818670376136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714735648208 (or 714735648204 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 165818670376136 in words is "one hundred sixty-five trillion, eight hundred eighteen billion, six hundred seventy million, three hundred seventy-six thousand, one hundred thirty-six".