168339594340 has 24 divisors (see below), whose sum is σ = 354642596280. Its totient is φ = 67120704768.

The previous prime is 168339594337. The next prime is 168339594383. The reversal of 168339594340 is 43495933861.

It can be written as a sum of positive squares in 4 ways, for example, as 13210743844 + 155128850496 = 114938^2 + 393864^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13439395 + ... + 13451914.

It is an arithmetic number, because the mean of its divisors is an integer number (14776774845).

Almost surely, 2^168339594340 is an apocalyptic number.

168339594340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168339594340 is an abundant number, since it is smaller than the sum of its proper divisors (186303001940).

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

168339594340 is a wasteful number, since it uses less digits than its factorization.

168339594340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26891631 (or 26891629 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 168339594340 in words is "one hundred sixty-eight billion, three hundred thirty-nine million, five hundred ninety-four thousand, three hundred forty".