80275866 has 64 divisors (see below), whose sum is σ = 182808576. Its totient is φ = 23284800.

The previous prime is 80275823. The next prime is 80275873. The reversal of 80275866 is 66857208.

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, 173151 + ... + 173613.

It is an arithmetic number, because the mean of its divisors is an integer number (2856384).

Almost surely, 2^80275866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80275866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91404288).

80275866 is an abundant number, since it is smaller than the sum of its proper divisors (102532710).

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

80275866 is a wasteful number, since it uses less digits than its factorization.

80275866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 80275866 is about 8959.6800166077. The cubic root of 80275866 is about 431.3816491999.

The spelling of 80275866 in words is "eighty million, two hundred seventy-five thousand, eight hundred sixty-six".