168811708416 has 360 divisors, whose sum is σ = 499796885952. Its totient is φ = 50370969600.

The previous prime is 168811708393. The next prime is 168811708433. The reversal of 168811708416 is 614807118861.

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, 2377629661 + ... + 2377629731.

Almost surely, 2^168811708416 is an apocalyptic number.

168811708416 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 168811708416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249898442976).

168811708416 is an abundant number, since it is smaller than the sum of its proper divisors (330985177536).

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

168811708416 is an frugal number, since it uses more digits than its factorization.

168811708416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 51.

The spelling of 168811708416 in words is "one hundred sixty-eight billion, eight hundred eleven million, seven hundred eight thousand, four hundred sixteen".