168630320 has 60 divisors (see below), whose sum is σ = 413857440. Its totient is φ = 63891072.

The previous prime is 168630311. The next prime is 168630373. The reversal of 168630320 is 23036861.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25961 + ... + 31799.

It is an arithmetic number, because the mean of its divisors is an integer number (6897624).

Almost surely, 2^168630320 is an apocalyptic number.

168630320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168630320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206928720).

168630320 is an abundant number, since it is smaller than the sum of its proper divisors (245227120).

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

168630320 is a wasteful number, since it uses less digits than its factorization.

168630320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890 (or 5865 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 168630320 is about 12985.7737543821. The cubic root of 168630320 is about 552.4740554144.

The spelling of 168630320 in words is "one hundred sixty-eight million, six hundred thirty thousand, three hundred twenty".