80669830277 has 2 divisors, whose sum is σ = 80669830278. Its totient is φ = 80669830276.

The previous prime is 80669830223. The next prime is 80669830327. The reversal of 80669830277 is 77203896608.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79809640036 + 860190241 = 282506^2 + 29329^2 .

It is a cyclic number.

It is not a de Polignac number, because 80669830277 - 2¹⁶ = 80669764741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80669830217) 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 as a sum of consecutive naturals, namely, 40334915138 + 40334915139.

It is an arithmetic number, because the mean of its divisors is an integer number (40334915139).

Almost surely, 2^80669830277 is an apocalyptic number.

It is an amenable number.

80669830277 is a deficient number, since it is larger than the sum of its proper divisors (1).

80669830277 is an equidigital number, since it uses as much as digits as its factorization.

80669830277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 80669830277 in words is "eighty billion, six hundred sixty-nine million, eight hundred thirty thousand, two hundred seventy-seven".