80459666 has 24 divisors (see below), whose sum is σ = 140756940. Its totient is φ = 34393632.

The previous prime is 80459653. The next prime is 80459669. The reversal of 80459666 is 66695408.

It can be written as a sum of positive squares in 2 ways, for example, as 76195441 + 4264225 = 8729^2 + 2065^2 .

It is not an unprimeable number, because it can be changed into a prime (80459669) 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, 49076 + ... + 50688.

Almost surely, 2^80459666 is an apocalyptic number.

80459666 is a deficient number, since it is larger than the sum of its proper divisors (60297274).

80459666 is a wasteful number, since it uses less digits than its factorization.

80459666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 80459666 is about 8969.9312148979. The cubic root of 80459666 is about 431.7106293996.

The spelling of 80459666 in words is "eighty million, four hundred fifty-nine thousand, six hundred sixty-six".