It is a Jordan-Polya number, since it can be written as 8! ⋅ (2!)2.
It is a tau number, because it is divible by the number of its divisors (120).
It is a congruent number.
161280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2161280 is an apocalyptic number.
161280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
161280 is a droll number since its even prime factors and its odd prime factors have the same sum.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 161280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
161280 is an equidigital number, since it uses as much as digits as its factorization.
161280 is an evil number, because the sum of its binary digits is even.
The square root of 161280 is about 401.5968127364. The cubic root of 161280 is about 54.4327369276.
The spelling of 161280 in words is "one hundred sixty-one thousand, two hundred eighty".