65880 is a `hidden beast` number, since 658 + 8 + 0 = 666.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65880.
65880 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
265880 is an apocalyptic number.
65880 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 65880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65880 is a wasteful number, since it uses less digits than its factorization.
65880 is an odious number, because the sum of its binary digits is odd.
The square root of 65880 is about 256.6709956345. The cubic root of 65880 is about 40.3878929836.
The spelling of 65880 in words is "sixty-five thousand, eight hundred eighty".