66673085299 has 2 divisors, whose sum is σ = 66673085300. Its totient is φ = 66673085298.

The previous prime is 66673085293. The next prime is 66673085363. The reversal of 66673085299 is 99258037666.

66673085299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66673085299 - 2²⁹ = 66136214387 is a prime.

It is not a weakly prime, because it can be changed into another prime (66673085293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33336542649 + 33336542650.

It is an arithmetic number, because the mean of its divisors is an integer number (33336542650).

Almost surely, 2^66673085299 is an apocalyptic number.

66673085299 is a deficient number, since it is larger than the sum of its proper divisors (1).

66673085299 is an equidigital number, since it uses as much as digits as its factorization.

66673085299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 66673085299 in words is "sixty-six billion, six hundred seventy-three million, eighty-five thousand, two hundred ninety-nine".