165380107913 has 4 divisors (see below), whose sum is σ = 166336062468. Its totient is φ = 164424153360.

The previous prime is 165380107909. The next prime is 165380107951. The reversal of 165380107913 is 319701083561.

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 160771327369 + 4608780544 = 400963^2 + 67888^2 .

It is a cyclic number.

It is not a de Polignac number, because 165380107913 - 2² = 165380107909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165380107993) 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, 477977018 + ... + 477977363.

It is an arithmetic number, because the mean of its divisors is an integer number (41584015617).

Almost surely, 2^165380107913 is an apocalyptic number.

It is an amenable number.

165380107913 is a deficient number, since it is larger than the sum of its proper divisors (955954555).

165380107913 is an equidigital number, since it uses as much as digits as its factorization.

165380107913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955954554.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 165380107913 in words is "one hundred sixty-five billion, three hundred eighty million, one hundred seven thousand, nine hundred thirteen".