648

Number
$648$ (six hundred and forty-eight) is:
 * $2^3 \times 3^4$


 * The $12$th positive integer after $128$, $192$, $256$, $320$, $384$, $432$, $448$, $480$, $512$, $576$, $640$ with $7$ or more prime factors:
 * $648 = 2 \times 2 \times 2 \times 3 \times 3 \times 3 \times 3$