168803361 has 24 divisors (see below), whose sum is σ = 251147624. Its totient is φ = 109175040.

The previous prime is 168803333. The next prime is 168803381. The reversal of 168803361 is 163308861.

It can be written as a sum of positive squares in 4 ways, for example, as 13950225 + 154853136 = 3735^2 + 12444^2 .

It is not a de Polignac number, because 168803361 - 2⁹ = 168802849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168803311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179685 + ... + 180621.

Almost surely, 2^168803361 is an apocalyptic number.

It is an amenable number.

168803361 is a deficient number, since it is larger than the sum of its proper divisors (82344263).

168803361 is a wasteful number, since it uses less digits than its factorization.

168803361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 168803361 is about 12992.4347602749. The cubic root of 168803361 is about 552.6629656517.

The spelling of 168803361 in words is "one hundred sixty-eight million, eight hundred three thousand, three hundred sixty-one".