165693369122 has 18 divisors (see below), whose sum is σ = 262326902193. Its totient is φ = 78481151784.

The previous prime is 165693369097. The next prime is 165693369133. The reversal of 165693369122 is 221963396561.

It can be written as a sum of positive squares in 2 ways, for example, as 158579964841 + 7113404281 = 398221^2 + 84341^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=287831.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10930004 + ... + 10945152.

Almost surely, 2^165693369122 is an apocalyptic number.

165693369122 is a deficient number, since it is larger than the sum of its proper divisors (96633533071).

165693369122 is an frugal number, since it uses more digits than its factorization.

165693369122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30338 (or 15170 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 53.

The spelling of 165693369122 in words is "one hundred sixty-five billion, six hundred ninety-three million, three hundred sixty-nine thousand, one hundred twenty-two".