How I can send massage from my app to Special number in whatsapp , I know this code to share massage to group or contact on whatsapp

```
Intent waIntent = new Intent(Intent.ACTION_SEND);
waIntent.setType("text/plain");
String text = "Sorry For Interruption,I'm Just Trying Something";
waIntent.setPackage("com.whatsapp");

if (waIntent != null) {
    waIntent.putExtra(Intent.EXTRA_TEXT, text);//
    startActivity(Intent.createChooser(waIntent,"Share with"));

```

but I want send massage to Special number like "966xxxxxxx" how I can do that ?