168065928 has 80 divisors (see below), whose sum is σ = 472626000. Its totient is φ = 55797984.

The previous prime is 168065897. The next prime is 168065939. The reversal of 168065928 is 829560861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 271203 + ... + 271821.

It is an arithmetic number, because the mean of its divisors is an integer number (5907825).

Almost surely, 2^168065928 is an apocalyptic number.

168065928 is a gapful number since it is divisible by the number (18) 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 168065928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236313000).

168065928 is an abundant number, since it is smaller than the sum of its proper divisors (304560072).

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

168065928 is a wasteful number, since it uses less digits than its factorization.

168065928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 168065928 is about 12964.0243751699. The cubic root of 168065928 is about 551.8570045482.

The spelling of 168065928 in words is "one hundred sixty-eight million, sixty-five thousand, nine hundred twenty-eight".