Vihanga is from the Sanskrit विहंग (Vihaṅga — bird, sky-going, flying being) — from Sanskrit vi (sky) + ga (going). Vihanga is one of the Sanskrit feminine + unisex names — central to traditional Hindu Vaishnava heritage. Sanskrit feminine name reflecting Hindu mythological heritage.
Vihanga does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Vihanga reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.