168673320 has 128 divisors (see below), whose sum is σ = 595382400. Its totient is φ = 42329088.

The previous prime is 168673313. The next prime is 168673321. The reversal of 168673320 is 23376861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (168673321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13767 + ... + 22953.

It is an arithmetic number, because the mean of its divisors is an integer number (4651425).

Almost surely, 2^168673320 is an apocalyptic number.

168673320 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 168673320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297691200).

168673320 is an abundant number, since it is smaller than the sum of its proper divisors (426709080).

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

168673320 is a wasteful number, since it uses less digits than its factorization.

168673320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224 (or 9214 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 168673320 is about 12987.4293068336. The cubic root of 168673320 is about 552.5210109193.

The spelling of 168673320 in words is "one hundred sixty-eight million, six hundred seventy-three thousand, three hundred twenty".