168418985 has 16 divisors (see below), whose sum is σ = 231223296. Its totient is φ = 115363008.

The previous prime is 168418969. The next prime is 168418997. The reversal of 168418985 is 589814861.

168418985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 168418985 - 2⁴ = 168418969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40472 + ... + 44438.

It is an arithmetic number, because the mean of its divisors is an integer number (14451456).

Almost surely, 2^168418985 is an apocalyptic number.

It is an amenable number.

168418985 is a deficient number, since it is larger than the sum of its proper divisors (62804311).

168418985 is a wasteful number, since it uses less digits than its factorization.

168418985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192.

The product of its digits is 552960, while the sum is 50.

The square root of 168418985 is about 12977.6340293599. The cubic root of 168418985 is about 552.2431639323.

The spelling of 168418985 in words is "one hundred sixty-eight million, four hundred eighteen thousand, nine hundred eighty-five".