168306985 has 64 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 98714880.

The previous prime is 168306961. The next prime is 168307003. The reversal of 168306985 is 589603861.

It is not a de Polignac number, because 168306985 - 2¹¹ = 168304937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 734851 + ... + 735079.

It is an arithmetic number, because the mean of its divisors is an integer number (4173120).

Almost surely, 2^168306985 is an apocalyptic number.

It is an amenable number.

168306985 is a deficient number, since it is larger than the sum of its proper divisors (98772695).

168306985 is a wasteful number, since it uses less digits than its factorization.

168306985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 168306985 is about 12973.3181954348. The cubic root of 168306985 is about 552.1207213824.

The spelling of 168306985 in words is "one hundred sixty-eight million, three hundred six thousand, nine hundred eighty-five".