80663169 has 4 divisors (see below), whose sum is σ = 107550896. Its totient is φ = 53775444.

The previous prime is 80663159. The next prime is 80663173. The reversal of 80663169 is 96136608.

It is a happy number.

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 not a de Polignac number, because 80663169 - 2⁷ = 80663041 is a prime.

It is a super-2 number, since 2×80663169² = 13013093666245122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80663159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13443859 + ... + 13443864.

It is an arithmetic number, because the mean of its divisors is an integer number (26887724).

Almost surely, 2^80663169 is an apocalyptic number.

It is an amenable number.

80663169 is a deficient number, since it is larger than the sum of its proper divisors (26887727).

80663169 is a wasteful number, since it uses less digits than its factorization.

80663169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26887726.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 80663169 is about 8981.2676722164. The cubic root of 80663169 is about 432.0742917071.

The spelling of 80663169 in words is "eighty million, six hundred sixty-three thousand, one hundred sixty-nine".