How many children did Kang-hsi have?

Answer 1

Having the longest reign in Chinese history, Kangxi also has the most children of all Qing emperors. He had officially 24 sons and 12 daughters. The actual number is higher, as most of his children died from illness.
~Wiki
In China's Last Empire by William Rowe, edited by Timothy Brook it says he had 60 all together, page 65...