66670904603 has 2 divisors, whose sum is σ = 66670904604. Its totient is φ = 66670904602.

The previous prime is 66670904591. The next prime is 66670904611. The reversal of 66670904603 is 30640907666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66670904603 - 2⁶ = 66670904539 is a prime.

It is not a weakly prime, because it can be changed into another prime (66670904653) 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, 33335452301 + 33335452302.

It is an arithmetic number, because the mean of its divisors is an integer number (33335452302).

Almost surely, 2^66670904603 is an apocalyptic number.

66670904603 is a deficient number, since it is larger than the sum of its proper divisors (1).

66670904603 is an equidigital number, since it uses as much as digits as its factorization.

66670904603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 66670904603 in words is "sixty-six billion, six hundred seventy million, nine hundred four thousand, six hundred three".