80005066 has 8 divisors (see below), whose sum is σ = 120065220. Its totient is φ = 39983328.

The previous prime is 80005027. The next prime is 80005073. The reversal of 80005066 is 66050008.

It can be written as a sum of positive squares in 2 ways, for example, as 69305625 + 10699441 = 8325^2 + 3271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80005066.

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 3 ways as a sum of consecutive naturals, for example, 3661 + ... + 13168.

Almost surely, 2^80005066 is an apocalyptic number.

80005066 is a deficient number, since it is larger than the sum of its proper divisors (40060154).

80005066 is a wasteful number, since it uses less digits than its factorization.

80005066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 80005066 is about 8944.5551035253. Note that the first 3 decimals coincide. The cubic root of 80005066 is about 430.8960331195.

The spelling of 80005066 in words is "eighty million, five thousand, sixty-six".