165239870544340 has 48 divisors (see below), whose sum is σ = 362092498363008. Its totient is φ = 63221922963584.

The previous prime is 165239870544319. The next prime is 165239870544377. The reversal of 165239870544340 is 43445078932561.

165239870544340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119243694 + ... + 120621466.

It is an arithmetic number, because the mean of its divisors is an integer number (7543593715896).

It is a 1-persistent number, because it is pandigital, but 2⋅165239870544340 = 330479741088680 is not.

Almost surely, 2^{165239870544340} is an apocalyptic number.

165239870544340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165239870544340 is an abundant number, since it is smaller than the sum of its proper divisors (196852627818668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165239870544340 is a wasteful number, since it uses less digits than its factorization.

165239870544340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638528 (or 1638526 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 61.

The spelling of 165239870544340 in words is "one hundred sixty-five trillion, two hundred thirty-nine billion, eight hundred seventy million, five hundred forty-four thousand, three hundred forty".