80664189 has 4 divisors (see below), whose sum is σ = 107552256. Its totient is φ = 53776124.

The previous prime is 80664163. The next prime is 80664203. The reversal of 80664189 is 98146608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80664189 - 2⁷ = 80664061 is a prime.

It is a super-2 number, since 2×80664189² = 13013422774055442, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80664189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80664149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13444029 + ... + 13444034.

It is an arithmetic number, because the mean of its divisors is an integer number (26888064).

Almost surely, 2^80664189 is an apocalyptic number.

It is an amenable number.

80664189 is a deficient number, since it is larger than the sum of its proper divisors (26888067).

80664189 is a wasteful number, since it uses less digits than its factorization.

80664189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26888066.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 80664189 is about 8981.3244568939. The cubic root of 80664189 is about 432.0761129180.

The spelling of 80664189 in words is "eighty million, six hundred sixty-four thousand, one hundred eighty-nine".