80668219 has 2 divisors, whose sum is σ = 80668220. Its totient is φ = 80668218.

The previous prime is 80668193. The next prime is 80668223. The reversal of 80668219 is 91286608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80668219 - 2⁵ = 80668187 is a prime.

It is a super-2 number, since 2×80668219² = 13014723113263922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80668019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40334109 + 40334110.

It is an arithmetic number, because the mean of its divisors is an integer number (40334110).

Almost surely, 2^80668219 is an apocalyptic number.

80668219 is a deficient number, since it is larger than the sum of its proper divisors (1).

80668219 is an equidigital number, since it uses as much as digits as its factorization.

80668219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 80668219 is about 8981.5488085296. The cubic root of 80668219 is about 432.0833083362.

The spelling of 80668219 in words is "eighty million, six hundred sixty-eight thousand, two hundred nineteen".