16851968 has 44 divisors (see below), whose sum is σ = 38516352. Its totient is φ = 7219200.

The previous prime is 16851953. The next prime is 16851973. The reversal of 16851968 is 86915861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993 + ... + 8343.

Almost surely, 2^16851968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16851968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19258176).

16851968 is an abundant number, since it is smaller than the sum of its proper divisors (21664384).

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

16851968 is an equidigital number, since it uses as much as digits as its factorization.

16851968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2360 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 16851968 is about 4105.1148583200. The cubic root of 16851968 is about 256.3796450458.

The spelling of 16851968 in words is "sixteen million, eight hundred fifty-one thousand, nine hundred sixty-eight".