168944568 has 96 divisors (see below), whose sum is σ = 477498240. Its totient is φ = 49695360.

The previous prime is 168944551. The next prime is 168944569. The reversal of 168944568 is 865449861.

It is a self number, because there is not a number n which added to its sum of digits gives 168944568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168944569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92383 + ... + 94193.

It is an arithmetic number, because the mean of its divisors is an integer number (4973940).

Almost surely, 2^168944568 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 168944568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238749120).

168944568 is an abundant number, since it is smaller than the sum of its proper divisors (308553672).

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

168944568 is a wasteful number, since it uses less digits than its factorization.

168944568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1852 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 168944568 is about 12997.8678251473. The cubic root of 168944568 is about 552.8170268197.

The spelling of 168944568 in words is "one hundred sixty-eight million, nine hundred forty-four thousand, five hundred sixty-eight".