80668006667 has 2 divisors, whose sum is σ = 80668006668. Its totient is φ = 80668006666.

The previous prime is 80668006663. The next prime is 80668006691. The reversal of 80668006667 is 76660086608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80668006667 - 2² = 80668006663 is a prime.

It is not a weakly prime, because it can be changed into another prime (80668006663) by changing a digit.

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 as a sum of consecutive naturals, namely, 40334003333 + 40334003334.

It is an arithmetic number, because the mean of its divisors is an integer number (40334003334).

Almost surely, 2^80668006667 is an apocalyptic number.

80668006667 is a deficient number, since it is larger than the sum of its proper divisors (1).

80668006667 is an equidigital number, since it uses as much as digits as its factorization.

80668006667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 80668006667 in words is "eighty billion, six hundred sixty-eight million, six thousand, six hundred sixty-seven".