168009552 has 100 divisors (see below), whose sum is σ = 511936480. Its totient is φ = 53047872.

The previous prime is 168009511. The next prime is 168009559. The reversal of 168009552 is 255900861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168009559) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21213 + ... + 28035.

Almost surely, 2^168009552 is an apocalyptic number.

168009552 is a gapful number since it is divisible by the number (12) 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 168009552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255968240).

168009552 is an abundant number, since it is smaller than the sum of its proper divisors (343926928).

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

168009552 is a wasteful number, since it uses less digits than its factorization.

168009552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862 (or 6847 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 168009552 is about 12961.8498679780. The cubic root of 168009552 is about 551.7952927144.

The spelling of 168009552 in words is "one hundred sixty-eight million, nine thousand, five hundred fifty-two".