168143616 has 216 divisors, whose sum is σ = 535691520. Its totient is φ = 50485248.

The previous prime is 168143587. The next prime is 168143627. The reversal of 168143616 is 616341861.

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

It is a nude number because it is divisible by every one of its digits.

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, 1006765 + ... + 1006931.

Almost surely, 2^168143616 is an apocalyptic number.

168143616 is a gapful number since it is divisible by the number (16) 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 168143616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267845760).

168143616 is an abundant number, since it is smaller than the sum of its proper divisors (367547904).

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

168143616 is a wasteful number, since it uses less digits than its factorization.

168143616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 214 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 168143616 is about 12967.0203207985. The cubic root of 168143616 is about 551.9420228963.

The spelling of 168143616 in words is "one hundred sixty-eight million, one hundred forty-three thousand, six hundred sixteen".