Hva er forskjellen på antall kvinner og tallet på kvinner?

En av den norske vennene mine fortalte meg at mann kan si "Kan du si meg tallet på kvinner?" men mann kan ikke si "Kan du si meg antall kvinner?"

Er det sant?

It sounds more natural to say "Kan du si meg antall kvinner?" than "Kan du si meg tallet på kvinner?". But you should add the area that is containing women you are asking about, if the person you are asking don't know it yet. For example: "Kan du si meg antall kvinner i Norge?".
Also, this question sounds like a question that follows another question about a topic. If you aren't already talking about, for example Norway, but are going to start talking about Norway by asking the number of women, you should say "Hvor stort er antall kvinner i Norge?". We use "Hvor stort" since we are asking about the amount of something.

So the answer to your question is: Nei!
I hope this helped you a little :) Lykke til!