80180880 has 160 divisors (see below), whose sum is σ = 276648960. Its totient is φ = 19077120.

The previous prime is 80180873. The next prime is 80180909. The reversal of 80180880 is 8808108.

80180880 = 391² + 392² + ... + 669².

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 96306 + ... + 97134.

It is an arithmetic number, because the mean of its divisors is an integer number (1729056).

Almost surely, 2^80180880 is an apocalyptic number.

80180880 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 80180880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138324480).

80180880 is an abundant number, since it is smaller than the sum of its proper divisors (196468080).

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

80180880 is a wasteful number, since it uses less digits than its factorization.

80180880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 33.

The square root of 80180880 is about 8954.3777003207. The cubic root of 80180880 is about 431.2114386861.

Adding to 80180880 its reverse (8808108), we get a palindrome (88988988).

The spelling of 80180880 in words is "eighty million, one hundred eighty thousand, eight hundred eighty".