160

160 = 2⁵ x 5.

160 has a representation as a sum of two squares: 160 = 4² + 12².

160 is the smallest number that is the sum of three distinct prime cubes: 160 = 2³ + 3³ + 5³.

160! - 159! + 158! - . . . -3! + 2! -1! is a prime number.

Each internal angle of a regular 18-sided polygon (octadecagon) is 160 degrees.

160 is the number of square rods in an acre.

Source: Prime Curios!