It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is an unprimeable number.
Almost surely, 265812080 is an apocalyptic number.
65812080 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 65812080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102404160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65812080 is a wasteful number, since it uses less digits than its factorization.
65812080 is an evil number, because the sum of its binary digits is even.
The square root of 65812080 is about 8112.4644837435. The cubic root of 65812080 is about 403.7400870446.
The spelling of 65812080 in words is "sixty-five million, eight hundred twelve thousand, eighty".