CREATE TABLE table_27666 ("GB" TEXT, "ISO \\u2116" TEXT, "Province" TEXT, "Chinese Name" TEXT, "Capital" TEXT, "Population\\u00b9" FLOAT, "Density\\u00b2" TEXT, "Area\\u00b3" FLOAT, "Abbreviation/Symbol" TEXT)

How many provinces have a density of 165.81?
SELECT COUNT("ISO \u2116") FROM table_27666 WHERE "Density\u00b2" = '165.81'
SELECT COUNT("ISO \u2116") FROM "table_27666" WHERE "Density\u00b2" = '165.81'