It is a tau number, because it is divible by the number of its divisors (144).
It is a nialpdrome in base 6.
It is a congruent number.
It is an unprimeable number.
660960 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2660960 is an apocalyptic number.
660960 is a gapful number since it is divisible by the number (60) 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 660960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
660960 is a wasteful number, since it uses less digits than its factorization.
660960 is an evil number, because the sum of its binary digits is even.
The square root of 660960 is about 812.9944649258. The cubic root of 660960 is about 87.1080702195.
The spelling of 660960 in words is "six hundred sixty thousand, nine hundred sixty".