160809985 has 16 divisors (see below), whose sum is σ = 220899456. Its totient is φ = 110089728.

The previous prime is 160809973. The next prime is 160809991. The reversal of 160809985 is 589908061.

It is not a de Polignac number, because 160809985 - 2¹¹ = 160807937 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, 20142 + ... + 26968.

It is an arithmetic number, because the mean of its divisors is an integer number (13806216).

Almost surely, 2^160809985 is an apocalyptic number.

It is an amenable number.

160809985 is a deficient number, since it is larger than the sum of its proper divisors (60089471).

160809985 is an equidigital number, since it uses as much as digits as its factorization.

160809985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 160809985 is about 12681.0876899421. The cubic root of 160809985 is about 543.7980807442.

The spelling of 160809985 in words is "one hundred sixty million, eight hundred nine thousand, nine hundred eighty-five".