66005941207 has 2 divisors, whose sum is σ = 66005941208. Its totient is φ = 66005941206.

The previous prime is 66005941193. The next prime is 66005941249. The reversal of 66005941207 is 70214950066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66005941207 - 2³⁵ = 31646202839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66005941207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66005945207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33002970603 + 33002970604.

It is an arithmetic number, because the mean of its divisors is an integer number (33002970604).

Almost surely, 2^66005941207 is an apocalyptic number.

66005941207 is a deficient number, since it is larger than the sum of its proper divisors (1).

66005941207 is an equidigital number, since it uses as much as digits as its factorization.

66005941207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 66005941207 in words is "sixty-six billion, five million, nine hundred forty-one thousand, two hundred seven".