How many people were in the world at the time of Abraham?

It's difficult to estimate the exact population of the world during the time of Abraham, who is traditionally dated to around 2000 BCE. Scholars suggest that the global population at that time may have been between 10 to 20 million people. This estimate is based on archaeological evidence and demographic models of early human societies. However, precise numbers are challenging to determine due to the lack of written records and reliable data from that period.