168320084 has 6 divisors (see below), whose sum is σ = 294560154. Its totient is φ = 84160040.

The previous prime is 168320081. The next prime is 168320143. The reversal of 168320084 is 480023861.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 30492484 = 11740^2 + 5522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168320084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168320081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21040007 + ... + 21040014.

It is an arithmetic number, because the mean of its divisors is an integer number (49093359).

Almost surely, 2^168320084 is an apocalyptic number.

It is an amenable number.

168320084 is a deficient number, since it is larger than the sum of its proper divisors (126240070).

168320084 is a wasteful number, since it uses less digits than its factorization.

168320084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42080025 (or 42080023 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 168320084 is about 12973.8230294698. The cubic root of 168320084 is about 552.1350444990.

The spelling of 168320084 in words is "one hundred sixty-eight million, three hundred twenty thousand, eighty-four".