PRODUCT
function PRODUCT(): number | string | booleanDescription
Multiplies all the numbers given as arguments.
Returns
number | string | booleanTry It
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.PRODUCT(65, 34, 165, 6, 9, 54));