Strange Wallet With $105 Billion Worth of Eth

This wallet is getting 2,000 eth every hour from a mining pool, and has $105 billion worth of eth. How is this possible? It doesn't seem possible to be getting $69 billion per year from mining.

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https://kovan.etherscan.io/address/0xb425fdbe8275361230a633c8d80ea371224d925c