80880165 has 12 divisors (see below), whose sum is σ = 140192364. Its totient is φ = 43136064.

The previous prime is 80880161. The next prime is 80880179. The reversal of 80880165 is 56108808.

It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 58155876 = 4767^2 + 7626^2 .

It is not a de Polignac number, because 80880165 - 2² = 80880161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80880161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898624 + ... + 898713.

It is an arithmetic number, because the mean of its divisors is an integer number (11682697).

Almost surely, 2^80880165 is an apocalyptic number.

It is an amenable number.

80880165 is a deficient number, since it is larger than the sum of its proper divisors (59312199).

80880165 is a wasteful number, since it uses less digits than its factorization.

80880165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797348 (or 1797345 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 80880165 is about 8993.3400358265. The cubic root of 80880165 is about 432.4613929698.

The spelling of 80880165 in words is "eighty million, eight hundred eighty thousand, one hundred sixty-five".