168969888 has 240 divisors, whose sum is σ = 541537920. Its totient is φ = 51508224.

The previous prime is 168969887. The next prime is 168969967. The reversal of 168969888 is 888969861.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (11943936) is a multiple of the sum of its prime divisors (144).

It is not an unprimeable number, because it can be changed into a prime (168969881) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2314620 + ... + 2314692.

It is an arithmetic number, because the mean of its divisors is an integer number (2256408).

Almost surely, 2^168969888 is an apocalyptic number.

168969888 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 168969888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270768960).

168969888 is an abundant number, since it is smaller than the sum of its proper divisors (372568032).

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

168969888 is a wasteful number, since it uses less digits than its factorization.

168969888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 144 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 168969888 is about 12998.8417945600. The cubic root of 168969888 is about 552.8446426389.

The spelling of 168969888 in words is "one hundred sixty-eight million, nine hundred sixty-nine thousand, eight hundred eighty-eight".