168896816 has 40 divisors (see below), whose sum is σ = 362339904. Its totient is φ = 75620160.

The previous prime is 168896801. The next prime is 168896821. The reversal of 168896816 is 618698861.

It is a happy number.

It is a super-2 number, since 2×168896816² = 57052268909875712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4631 + ... + 18953.

Almost surely, 2^168896816 is an apocalyptic number.

168896816 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 168896816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181169952).

168896816 is an abundant number, since it is smaller than the sum of its proper divisors (193443088).

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

168896816 is a wasteful number, since it uses less digits than its factorization.

168896816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14409 (or 14403 counting only the distinct ones).

The product of its digits is 995328, while the sum is 53.

The square root of 168896816 is about 12996.0307786647. The cubic root of 168896816 is about 552.7649375329.

The spelling of 168896816 in words is "one hundred sixty-eight million, eight hundred ninety-six thousand, eight hundred sixteen".