80816080 has 20 divisors (see below), whose sum is σ = 187897572. Its totient is φ = 32326400.

The previous prime is 80816051. The next prime is 80816083. The reversal of 80816080 is 8061808.

It can be written as a sum of positive squares in 2 ways, for example, as 57699216 + 23116864 = 7596^2 + 4808^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80816083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505021 + ... + 505180.

Almost surely, 2^80816080 is an apocalyptic number.

80816080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80816080 is an abundant number, since it is smaller than the sum of its proper divisors (107081492).

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

80816080 is a wasteful number, since it uses less digits than its factorization.

80816080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010214 (or 1010208 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 80816080 is about 8989.7764154622. The cubic root of 80816080 is about 432.3471432385.

Adding to 80816080 its reverse (8061808), we get a palindrome (88877888).

It can be divided in two parts, 8081 and 6080, that added together give a square (14161 = 119²).

The spelling of 80816080 in words is "eighty million, eight hundred sixteen thousand, eighty".