165246340438919 has 4 divisors (see below), whose sum is σ = 165260560082280. Its totient is φ = 165232120795560.

The previous prime is 165246340438871. The next prime is 165246340438973. The reversal of 165246340438919 is 919834043642561.

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 165246340438919 - 2³⁶ = 165177620962183 is a prime.

It is a super-2 number, since 2×165246340438919² (a number of 29 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 (165246340438219) 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 3 ways as a sum of consecutive naturals, for example, 7109804249 + ... + 7109827490.

It is an arithmetic number, because the mean of its divisors is an integer number (41315140020570).

Almost surely, 2^{165246340438919} is an apocalyptic number.

165246340438919 is a deficient number, since it is larger than the sum of its proper divisors (14219643361).

165246340438919 is a wasteful number, since it uses less digits than its factorization.

165246340438919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14219643360.

The product of its (nonzero) digits is 134369280, while the sum is 65.

The spelling of 165246340438919 in words is "one hundred sixty-five trillion, two hundred forty-six billion, three hundred forty million, four hundred thirty-eight thousand, nine hundred nineteen".