Magic Square!

A $3×3$ magic square contain three rows and three columns.It contains elements $a,b,c,d,e,f,g,h,i$ . The magic square is such that the sum of terms in each column or row is $n$ .

If sum of product of all possible terms in magic square is $216,$

$\sum {a*b*c*d*e*f*g*h*i}$ = $216$ . Find $n$ ?

Clarification $-$ $a,b,c,d,e,f,g,h,i,n\in W$ , $W$ denotes positive integers including zero( $0$ ).