168486318 has 160 divisors (see below), whose sum is σ = 507386880. Its totient is φ = 40357440.

The previous prime is 168486313. The next prime is 168486347. The reversal of 168486318 is 813684861.

It is a happy number.

168486318 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 8 + 631 + 8 = 666.

168486318 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 not an unprimeable number, because it can be changed into a prime (168486313) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 161643 + ... + 162681.

It is an arithmetic number, because the mean of its divisors is an integer number (3171168).

Almost surely, 2^168486318 is an apocalyptic number.

168486318 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 168486318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253693440).

168486318 is an abundant number, since it is smaller than the sum of its proper divisors (338900562).

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

168486318 is a wasteful number, since it uses less digits than its factorization.

168486318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1075 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 168486318 is about 12980.2279640999. The cubic root of 168486318 is about 552.3167487377.

The spelling of 168486318 in words is "one hundred sixty-eight million, four hundred eighty-six thousand, three hundred eighteen".