66003208859 has 48 divisors (see below), whose sum is σ = 80288592384. Its totient is φ = 53139715200.

The previous prime is 66003208853. The next prime is 66003208879. The reversal of 66003208859 is 95880230066.

It is a happy number.

It is not a de Polignac number, because 66003208859 - 2³² = 61708241563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66003208853) 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 in 47 ways as a sum of consecutive naturals, for example, 49963919 + ... + 49965239.

It is an arithmetic number, because the mean of its divisors is an integer number (1672679008).

Almost surely, 2^66003208859 is an apocalyptic number.

66003208859 is a deficient number, since it is larger than the sum of its proper divisors (14285383525).

66003208859 is a wasteful number, since it uses less digits than its factorization.

66003208859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 66003208859 in words is "sixty-six billion, three million, two hundred eight thousand, eight hundred fifty-nine".