66903217883 has 2 divisors, whose sum is σ = 66903217884. Its totient is φ = 66903217882.

The previous prime is 66903217847. The next prime is 66903217937. The reversal of 66903217883 is 38871230966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66903217883 - 2²⁴ = 66886440667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (66903217483) 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, 33451608941 + 33451608942.

It is an arithmetic number, because the mean of its divisors is an integer number (33451608942).

Almost surely, 2^66903217883 is an apocalyptic number.

66903217883 is a deficient number, since it is larger than the sum of its proper divisors (1).

66903217883 is an equidigital number, since it uses as much as digits as its factorization.

66903217883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 66903217883 in words is "sixty-six billion, nine hundred three million, two hundred seventeen thousand, eight hundred eighty-three".