168316032 has 64 divisors (see below), whose sum is σ = 452561760. Its totient is φ = 55418880.

The previous prime is 168316007. The next prime is 168316037. The reversal of 168316032 is 230613861.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (168316037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29232 + ... + 34512.

Almost surely, 2^168316032 is an apocalyptic number.

168316032 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 168316032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226280880).

168316032 is an abundant number, since it is smaller than the sum of its proper divisors (284245728).

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

168316032 is an equidigital number, since it uses as much as digits as its factorization.

168316032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381 (or 5369 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 168316032 is about 12973.6668679291. Note that the first 3 decimals coincide. The cubic root of 168316032 is about 552.1306139143.

Adding to 168316032 its reverse (230613861), we get a palindrome (398929893).

The spelling of 168316032 in words is "one hundred sixty-eight million, three hundred sixteen thousand, thirty-two".