Number 18 — Eighteen

The number 18 is written with one or two Western digits from the Hindu–Arabic numeral system. It is even and composite. Its positive divisors are 1, 2, 3, 6, 9, 18. These mathematical properties are verifiable; religious, esoteric, and numerological readings depend on a particular tradition and are not properties of the number itself. Numerological reading: the number is associated with lunar sensitivity, karma, and completion. In a talismanic or meditative composition it may express an intention to focus on these qualities; meanings vary by school and context.