168109648 has 80 divisors (see below), whose sum is σ = 386760960. Its totient is φ = 69285888.

The previous prime is 168109639. The next prime is 168109649. The reversal of 168109648 is 846901861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168109649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468093 + ... + 468451.

It is an arithmetic number, because the mean of its divisors is an integer number (4834512).

Almost surely, 2^168109648 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 168109648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193380480).

168109648 is an abundant number, since it is smaller than the sum of its proper divisors (218651312).

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

168109648 is a wasteful number, since it uses less digits than its factorization.

168109648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 168109648 is about 12965.7104703136. The cubic root of 168109648 is about 551.9048530259.

The spelling of 168109648 in words is "one hundred sixty-eight million, one hundred nine thousand, six hundred forty-eight".