Rev 13:16, "He causes all both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads, and that non one may buy or sell except one who has the mark or the name of the beast, or the number of his name".
Here, we can see every name has a number attached to it. The number of the beast is 666 (verse 18). Both 666 adds up to 18 mentioned in verse 18. This mark will control life and death. If you cannot buy or sell you cannot eat. This is a counterfeit of God's mark He places in the right hand --a record of our deeds.
Surah 69:18- 22, "That Day shall you be brought to Judgement, not a secret of you will be hidden. Then as for him who will be given his Record in his right hand will say: "Here! read my Record! "Surely, I did believe that I shall meet my Account!" So he shall be in a life, well pleasing, in a lofty Paradise".
Satan's counterfeit is receive a mark in the right hand to worship the beast receiving last plagues and burning with fire and brimstone (Rev 14:10,11). God's truth is to receive a RECORD in the RIGHT hand to enter into PARADISE. Those who receive the record in the left hand will say, "I wish that I had not been given my Record". (Surah 69:25) and they will be thrown into the blazing fire, being seized by the holy angels with a chain of 70 cubits (verses 31-32).
The Bible says the sheep are on the right hand side and the goats (who go into the blazing fire) on the left.
Matthew 25:32-34,41: "All the nations will be gathered before Him; and He will separate them from one another, as the shepherd separates the sheep from the goats; and He will put the sheep on His right, and the goats on the left. "Then the King will say to those on His right, 'Come, you who are blessed of My Father, inherit the kingdom prepared for you from the foundation of the world." ... "Then He will also say to those on the left hand. Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels."
The Bible and Quran are consistent--the righteous are always on the right. Those who will not inherit salvation will be on the left and receive their record in their left hand. Satan uses a clever counterfeit by placing his mark on the right hand (since this is reserved for the righteous who will receive salvation). Satan again proclaiming himself to be god and ruler of mankind.