To calculate \( 1065^{15} \), you can use a calculator or perform the operation programmatically due to the size of the number.
However, if you're looking for a numerical value, it's:
\[ 1065^{15} \approx 2.263 \times 10^{47} \]
If you need a more precise value, using computational software or programming languages that handle large integers can give you the exact result, but it will be an extremely large number. Would you like to know how to compute this with a specific tool or language?