666062099 has 2 divisors, whose sum is σ = 666062100. Its totient is φ = 666062098.

The previous prime is 666062087. The next prime is 666062113. The reversal of 666062099 is 990260666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666062099 - 2²⁸ = 397626643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (666062039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333031049 + 333031050.

It is an arithmetic number, because the mean of its divisors is an integer number (333031050).

Almost surely, 2^666062099 is an apocalyptic number.

666062099 is a deficient number, since it is larger than the sum of its proper divisors (1).

666062099 is an equidigital number, since it uses as much as digits as its factorization.

666062099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 666062099 is about 25808.1789167698. The cubic root of 666062099 is about 873.3163156206.

The spelling of 666062099 in words is "six hundred sixty-six million, sixty-two thousand, ninety-nine".