216

Number
$216$ (two hundred and sixteen) is:
 * $2^3 \times 3^3$


 * The $6$th cube number after $1, 8, 27, 64, 125$:
 * $216 = 6 \times 6 \times 6$


 * The $10$th inconsummate number after $62, 63, 65, 75, 84, 95, 161, 173, 195$:
 * $\nexists n \in \Z_{>0}: n = 216 \times s_{10} \left({n}\right)$


 * The $1$st element of the $2$nd set of $4$ positive integers which form an arithmetic progression which all have the same Euler $\phi$ value:
 * $\phi \left({216}\right) = \phi \left({222}\right) = \phi \left({228}\right) = \phi \left({234}\right) = 72$