Henutsen means "their mistress" or "mistress of love" in Egyptian. Queen Henutsen (c. 2580 BCE) was the wife of Pharaoh Khufu, builder of the Great Pyramid — mother of Pharaoh Khafre. The smallest of the three queens' pyramids beside the Great Pyramid is hers, and a chapel there became the famous "Temple of Isis, Mistress of the Pyramid" in later periods.
Featured in Egyptian dynastic genealogies.
Henutsen 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.
In Pythagorean numerology the letters of Henutsen reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.