80543360 has 64 divisors (see below), whose sum is σ = 193642920. Its totient is φ = 32034816.

The previous prime is 80543357. The next prime is 80543369. The reversal of 80543360 is 6334508.

It can be written as a sum of positive squares in 4 ways, for example, as 51036736 + 29506624 = 7144^2 + 5432^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (80543369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202682 + ... + 203078.

Almost surely, 2^80543360 is an apocalyptic number.

80543360 is a gapful number since it is divisible by the number (80) 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 80543360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96821460).

80543360 is an abundant number, since it is smaller than the sum of its proper divisors (113099560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80543360 is a wasteful number, since it uses less digits than its factorization.

80543360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 80543360 is about 8974.5952554976. The cubic root of 80543360 is about 431.8602657348.

Adding to 80543360 its reverse (6334508), we get a palindrome (86877868).

The spelling of 80543360 in words is "eighty million, five hundred forty-three thousand, three hundred sixty".