1,000,000 trillion (1 quintillion).
One billion-sided polygon = GIGAGON
An exagon is not a commonly known shape. It may possibly be a misspelling or a rare geometric term. Assuming you meant "hexagons", here are some properties of hexagons: Six sides: Hexagons have six straight sides. Six angles: Hexagons have six interior angles, each measuring 120 degrees, making the sum of their angles 720 degrees. Regular or irregular: Hexagons can be regular, with all sides and angles equal, or irregular, with different side lengths and/or angles. Convex or concave: Hexagons can be convex, where all interior angles are less than 180 degrees, or concave, where at least one interior angle is greater than 180 degrees. Symmetry: Regular hexagons possess rotational symmetry of order 6, meaning they can be rotated by multiples of 60 degrees and still appear the same. Diagonals: Hexagons have nine diagonals (lines connecting non-adjacent vertices). Tessellation: Hexagons are an efficient shape for tessellating (covering a plane with no gaps or overlaps) in combination with other hexagons. Symmetrical division: By connecting some of its diagonals, a hexagon can be divided into three congruent parallelograms or six congruent triangles.