168108416 has 80 divisors (see below), whose sum is σ = 391411740. Its totient is φ = 71914752.

The previous prime is 168108401. The next prime is 168108433. The reversal of 168108416 is 614801861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 307055 + ... + 307601.

Almost surely, 2^168108416 is an apocalyptic number.

168108416 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 168108416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195705870).

168108416 is an abundant number, since it is smaller than the sum of its proper divisors (223303324).

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

168108416 is an frugal number, since it uses more digits than its factorization.

168108416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 168108416 is about 12965.6629602963. The cubic root of 168108416 is about 551.9035048018.

The spelling of 168108416 in words is "one hundred sixty-eight million, one hundred eight thousand, four hundred sixteen".