165127056211 has 4 divisors (see below), whose sum is σ = 177829137472. Its totient is φ = 152424974952.

The previous prime is 165127056203. The next prime is 165127056217. The reversal of 165127056211 is 112650721561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165127056211 - 2³ = 165127056203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165127056217) 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, 6351040611 + ... + 6351040636.

It is an arithmetic number, because the mean of its divisors is an integer number (44457284368).

Almost surely, 2^165127056211 is an apocalyptic number.

165127056211 is a deficient number, since it is larger than the sum of its proper divisors (12702081261).

165127056211 is a wasteful number, since it uses less digits than its factorization.

165127056211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12702081260.

The product of its (nonzero) digits is 25200, while the sum is 37.

Adding to 165127056211 its reverse (112650721561), we get a palindrome (277777777772).

The spelling of 165127056211 in words is "one hundred sixty-five billion, one hundred twenty-seven million, fifty-six thousand, two hundred eleven".