BMW part nbrs are 11 digits long (xx xx x xxx xxx)...and sometimes (due to space) they will only use the last 7 digits (x xxx xxx) of the part nbr.
In this case...the wheel's part nbr is
36 11 6 762 330 ( Light alloy rim, 36*11*6*762*330 ). Disregard any alpha characters or anything after a dash (in this case the "-14"). The other problem here is that this part nbr is discontinued...which makes it a bit more difficult to look up using the new part databases...some do not reference back to old NLA (no longer available) part numbers.
I believe this is the latest 11 digit BMW part nbr for the wheel you inquired about
:
BMW light alloy wheel, star spoke 57 BMW X5 E53, X5 3.0d (M57N)