168499968 has 144 divisors (see below), whose sum is σ = 552174336. Its totient is φ = 44421120.

The previous prime is 168499957. The next prime is 168499993. The reversal of 168499968 is 869994861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68683 + ... + 71093.

It is an arithmetic number, because the mean of its divisors is an integer number (3834544).

Almost surely, 2^168499968 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 168499968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276087168).

168499968 is an abundant number, since it is smaller than the sum of its proper divisors (383674368).

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

168499968 is a wasteful number, since it uses less digits than its factorization.

168499968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2436 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The square root of 168499968 is about 12980.7537531532. The cubic root of 168499968 is about 552.3316637372.

The spelling of 168499968 in words is "one hundred sixty-eight million, four hundred ninety-nine thousand, nine hundred sixty-eight".