2*2*2*2*2*2*2*2*2*2*2*2*2*2*2

The expression \( 2^{15} \) represents multiplying 2 by itself 15 times. To calculate it:

\[ 2^{15} = 32768 \]

So, \( 2*2*2*2*2*2*2*2*2*2*2*2*2*2*2 = 32768 \).