Unless you happen to know who owns
16fYQiV2cdHuycGo3eibE5JSKvndY2z8Gw, there is no way for you to get back your Bitcoin. You could try to raise awareness that this address holds stolen coin, but I don't see how that would benefit you in any way. What happened is essentially the Bitcoin equivalent of somebody taking your dollar bills from your wallet without you noticing.
You might want to get in touch with the Coinbase support and see if they have a policy regarding such events. You might also want to use more secure methods of storing your bitcoin in the future, such as password protected desktop wallets, paper wallets, or at least an online wallet with two way authenticated spending access.
As of how exactly the attacker gained access, I cannot tell from the information provided. It could either be by having compromised your android device or by having compromised your account at Coinbase directly.