An Associated Press report, quoting the New Straits Times, said Yahaya Wahab disconnected his late father's phone line in January after the latter died. He then settled the 84-ringgit ($23) bill.
But Telekom Malaysia later sent him an 806,400,000,000,000.01-ringgit ($218-trillion) bill for recent telephone calls, along with orders to settle within 10 days or face legal proceedings, the newspaper reported.
It was not clear whether the bill was a mistake, or if Yahaya's father's phone line was used illegally after his death, the report said.
A company official said Telekom Malaysia, the country's largest telecom company, was aware of Yahaya's case and would address it, the report said.