I notice that you didn't provide the motherboard make and model. That would be useful to answer the question.
alexoiu is correct that this will work if the board is compatible with 8 sticks of that particular RAM. I expect that it would be fairly iffy, and that you should stick to RAM that has been verified to work with that board by the manufacturer. Look at the memory compatibility sheet for the motherboard.
Out of curiosity, what do you need 64 GB of RAM for? With DDR4, that's a pretty serious investment.