165133938339 has 6 divisors (see below), whose sum is σ = 238526799836. Its totient is φ = 110089292220.

The previous prime is 165133938293. The next prime is 165133938379. The reversal of 165133938339 is 933839331561.

165133938339 is a `hidden beast` number, since 1 + 6 + 513 + 3 + 93 + 8 + 3 + 39 = 666.

It is not a de Polignac number, because 165133938339 - 2²⁴ = 165117161123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165133938379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9174107677 + ... + 9174107694.

Almost surely, 2^165133938339 is an apocalyptic number.

165133938339 is a deficient number, since it is larger than the sum of its proper divisors (73392861497).

165133938339 is a wasteful number, since it uses less digits than its factorization.

165133938339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18348215377 (or 18348215374 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 54.

The spelling of 165133938339 in words is "one hundred sixty-five billion, one hundred thirty-three million, nine hundred thirty-eight thousand, three hundred thirty-nine".