66002170099 has 2 divisors, whose sum is σ = 66002170100. Its totient is φ = 66002170098.

The previous prime is 66002170093. The next prime is 66002170159. The reversal of 66002170099 is 99007120066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66002170099 - 2¹¹ = 66002168051 is a prime.

It is not a weakly prime, because it can be changed into another prime (66002170093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33001085049 + 33001085050.

It is an arithmetic number, because the mean of its divisors is an integer number (33001085050).

Almost surely, 2^66002170099 is an apocalyptic number.

66002170099 is a deficient number, since it is larger than the sum of its proper divisors (1).

66002170099 is an equidigital number, since it uses as much as digits as its factorization.

66002170099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 66002170099 in words is "sixty-six billion, two million, one hundred seventy thousand, ninety-nine".