165332624201 has 4 divisors (see below), whose sum is σ = 165435125892. Its totient is φ = 165230122512.

The previous prime is 165332624183. The next prime is 165332624203. The reversal of 165332624201 is 102426233561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58876596025 + 106456028176 = 242645^2 + 326276^2 .

It is a cyclic number.

It is not a de Polignac number, because 165332624201 - 2³⁰ = 164258882377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165332624203) 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, 51248426 + ... + 51251651.

It is an arithmetic number, because the mean of its divisors is an integer number (41358781473).

Almost surely, 2^165332624201 is an apocalyptic number.

It is an amenable number.

165332624201 is a deficient number, since it is larger than the sum of its proper divisors (102501691).

165332624201 is a wasteful number, since it uses less digits than its factorization.

165332624201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102501690.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 165332624201 its reverse (102426233561), we get a palindrome (267758857762).

The spelling of 165332624201 in words is "one hundred sixty-five billion, three hundred thirty-two million, six hundred twenty-four thousand, two hundred one".