165252913877 has 8 divisors (see below), whose sum is σ = 181513498560. Its totient is φ = 149748635520.

The previous prime is 165252913843. The next prime is 165252913933. The reversal of 165252913877 is 778319252561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-165252913877 is a prime.

It is a super-2 number, since 2×165252913877² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165252913277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189076124 + ... + 189076997.

It is an arithmetic number, because the mean of its divisors is an integer number (22689187320).

Almost surely, 2^165252913877 is an apocalyptic number.

It is an amenable number.

165252913877 is a deficient number, since it is larger than the sum of its proper divisors (16260584683).

165252913877 is a wasteful number, since it uses less digits than its factorization.

165252913877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378153163.

The product of its digits is 6350400, while the sum is 56.

The spelling of 165252913877 in words is "one hundred sixty-five billion, two hundred fifty-two million, nine hundred thirteen thousand, eight hundred seventy-seven".