66673400603 has 2 divisors, whose sum is σ = 66673400604. Its totient is φ = 66673400602.

The previous prime is 66673400581. The next prime is 66673400611. The reversal of 66673400603 is 30600437666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66673400603 - 2²⁰ = 66672352027 is a prime.

It is not a weakly prime, because it can be changed into another prime (66673400653) 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, 33336700301 + 33336700302.

It is an arithmetic number, because the mean of its divisors is an integer number (33336700302).

Almost surely, 2^66673400603 is an apocalyptic number.

66673400603 is a deficient number, since it is larger than the sum of its proper divisors (1).

66673400603 is an equidigital number, since it uses as much as digits as its factorization.

66673400603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 66673400603 in words is "sixty-six billion, six hundred seventy-three million, four hundred thousand, six hundred three".