2664 is a `hidden beast` number, since 2 + 664 = 666.
2664 is nontrivially palindromic in base 11.
It is a tau number, because it is divible by the number of its divisors (24).
It is a nude number because it is divisible by every one of its digits.
It is a d-powerful number, because it can be written as 27 + 63 + 64 + 45 .
It is a plaindrome in base 13.
It is a nialpdrome in base 14.
2664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3705).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2664 is a wasteful number, since it uses less digits than its factorization.
2664 is an odious number, because the sum of its binary digits is odd.
The square root of 2664 is about 51.6139516023. The cubic root of 2664 is about 13.8626015369.
The spelling of 2664 in words is "two thousand, six hundred sixty-four".