If one is interested in calculating the number that defines human beings there should be little delay. The dominating powers in the eschaton are two satanic-powered beasts (Revelation 13). Broadly speaking we can lodge those identities with governments and allied agencies. They are egotistical tyrants. They compel people to worship the devil on pain of death.
A simple understanding of the beastly character is failure: in triplicate. Human domains are three: sky, land and sea. Compared to the Lamb with his seven horns, seven eyes, and a two-edged sword in his mouth. The Lamb has authority over the living and the dead. The beast and his enabling power, the devil, are on a murderous rampage. The Lamb continues to demonstrate God’s commitment to give life to the dead.
Here is wisdom: a man’s number
Calculate his number
Revelation of John 13:18
Here is wisdom. Let him who has understanding calculate the number of the beast, for the number is that of a man; and his number is six hundred and sixty-six.
Lamb 777
Revelation of John 5:6
And I saw between the throne (with the four living creatures) and the elders a Lamb standing, as if slain, having seven horns and seven eyes, which are the seven Spirits of God, sent out into all the earth.