168342068181 has 16 divisors (see below), whose sum is σ = 256529476224. Its totient is φ = 96192381504.

The previous prime is 168342068179. The next prime is 168342068197. The reversal of 168342068181 is 181860243861.

It is not a de Polignac number, because 168342068181 - 2¹ = 168342068179 is a prime.

It is a super-2 number, since 2×168342068181² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168342068181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168342068101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651715 + ... + 872591.

It is an arithmetic number, because the mean of its divisors is an integer number (16033092264).

Almost surely, 2^168342068181 is an apocalyptic number.

It is an amenable number.

168342068181 is a deficient number, since it is larger than the sum of its proper divisors (88187408043).

168342068181 is a wasteful number, since it uses less digits than its factorization.

168342068181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257180.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 168342068181 in words is "one hundred sixty-eight billion, three hundred forty-two million, sixty-eight thousand, one hundred eighty-one".