Which green 18650 battery? LG, Sony and Samsung all make green 18650 batteries.
The "resistance" of your coil is 0.56 ohms. Ohms is a measured value of the amount of current the wire will use. It's sort of like the "watts" on a lightbulb and how much light it will produce, but that's probably a poor anology.
In our ecigs resistance is in our coils. If you increase the resistance (increase the ohms) of the coil then less electricity is allowed to flow through the coil. The lower the electrical flow through the coil the cooler your vape will be. On the inverse if we increase the electrical flow by using a lower resistance coil (lower ohms), we will see a higher electrical flow that will result in warmer temperatures.
For a primer on Ohm's Law for vapers, read ...
Ohm's Law Explained for Vapers
At that resistance, and assuming that you're using either LG, Sony or Samsung INR batteries, you're good to go. That's a safe combination.
Battery Basics for Mods: The Definative Battery Guide for Vaping