168045318 has 48 divisors (see below), whose sum is σ = 417539616. Its totient is φ = 47848320.

The previous prime is 168045307. The next prime is 168045331. The reversal of 168045318 is 813540861.

168045318 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168045318² = 56478457803442248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37308 + ... + 41568.

It is an arithmetic number, because the mean of its divisors is an integer number (8698742).

Almost surely, 2^168045318 is an apocalyptic number.

168045318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168045318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208769808).

168045318 is an abundant number, since it is smaller than the sum of its proper divisors (249494298).

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

168045318 is a wasteful number, since it uses less digits than its factorization.

168045318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589 (or 4586 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 168045318 is about 12963.2294587421. The cubic root of 168045318 is about 551.8344454688.

It can be divided in two parts, 16804 and 5318, that added together give a palindrome (22122).

The spelling of 168045318 in words is "one hundred sixty-eight million, forty-five thousand, three hundred eighteen".