168442160 has 40 divisors (see below), whose sum is σ = 394151856. Its totient is φ = 66942720.

The previous prime is 168442159. The next prime is 168442177. The reversal of 168442160 is 61244861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×168442160² = 56745522530931200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5855 + ... + 19265.

Almost surely, 2^168442160 is an apocalyptic number.

168442160 is a gapful number since it is divisible by the number (10) 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 168442160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197075928).

168442160 is an abundant number, since it is smaller than the sum of its proper divisors (225709696).

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

168442160 is a wasteful number, since it uses less digits than its factorization.

168442160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13581 (or 13575 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 168442160 is about 12978.5268809677. The cubic root of 168442160 is about 552.2684929223.

The spelling of 168442160 in words is "one hundred sixty-eight million, four hundred forty-two thousand, one hundred sixty".