164882985 has 8 divisors (see below), whose sum is σ = 263812800. Its totient is φ = 87937584.

The previous prime is 164882959. The next prime is 164882999. The reversal of 164882985 is 589288461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164882985 - 2⁷ = 164882857 is a prime.

It is a Curzon number.

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, 5496085 + ... + 5496114.

It is an arithmetic number, because the mean of its divisors is an integer number (32976600).

Almost surely, 2^164882985 is an apocalyptic number.

164882985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164882985 is a deficient number, since it is larger than the sum of its proper divisors (98929815).

164882985 is a wasteful number, since it uses less digits than its factorization.

164882985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992207.

The product of its digits is 1105920, while the sum is 51.

The square root of 164882985 is about 12840.6769681353. The cubic root of 164882985 is about 548.3509670782.

The spelling of 164882985 in words is "one hundred sixty-four million, eight hundred eighty-two thousand, nine hundred eighty-five".