There are roughly 1.6 billion Muslims worldwide and they make about 23% of the world population.
The largest national Muslim population is the Indonesian Muslim population at 280 million individuals.
The main religion of Pakistan is Islam with over 90 percent of followers.
Followers of what in the indigenous what - where?
Islam followers (Muslims) are from many countries like Egypt, Iran, Saudi Arabia, Pakistan, Afghanistan and many western countries.
There are about 2.1 Christians worldwide.
About 14 million
No, Christianity may have marginal more followers (if valid) but not twice as Islam followers per Quran revelation to prophet Muhammad (PBUH).
Chistianity, Islam
60 Million and counting
There are estimated to be around five million followers - in 200 countries worldwide.
Islam surely has many more followers than Christianity !
This religion is "Bahá'í Faith", not "Bahaism", by its followers. Estimates on the number of followers are around 7 million worldwide.
There were about 18 million.