2665 is nontrivially palindromic in base 12.
2665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Duffinian number.
2665 is an undulating number in base 8.
It is a nialpdrome in base 14.
22665 is an apocalyptic number.
2665 is the 37-th centered square number.
It is an amenable number.
2665 is a wasteful number, since it uses less digits than its factorization.
2665 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59.
The square root of 2665 is about 51.6236379966. The cubic root of 2665 is about 13.8643358796.
The spelling of 2665 in words is "two thousand, six hundred sixty-five".