Could be: Google's annual revenue for 2018 was $136.22 billion[1], which yields $1,315,512 revenue per employee.

Controlling for employee growth from 2018 to 2019 (they only had 85,050 employees at the end of Q1 2018[2]) and assuming linear growth and revenue earn through the year, that gives an average number of employees of 94,300 over the year (I realise this is an oversimplification), and revenue per employee of $1,444,546.

That's still lower than Garry's quoted figure of $1.6M, although it's close, and possibly close enough.

The reason I queried it is that he goes out of his way to make the point about profit: "Google's pure profit per employee is actually $1.6 million per year, after all costs." (Emphasis mine.)

[1] https://www.statista.com/statistics/266206/googles-annual-gl...

[2] https://edition.cnn.com/2019/04/29/tech/alphabet-q1-earnings...