66009050303 has 4 divisors (see below), whose sum is σ = 75438914640. Its totient is φ = 56579185968.

The previous prime is 66009050291. The next prime is 66009050309. The reversal of 66009050303 is 30305090066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30305090066 = 2 ⋅15152545033.

It is a cyclic number.

It is not a de Polignac number, because 66009050303 - 2¹⁴ = 66009033919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66009050303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66009050309) 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 in 3 ways as a sum of consecutive naturals, for example, 4714932158 + ... + 4714932171.

It is an arithmetic number, because the mean of its divisors is an integer number (18859728660).

Almost surely, 2^66009050303 is an apocalyptic number.

66009050303 is a deficient number, since it is larger than the sum of its proper divisors (9429864337).

66009050303 is an equidigital number, since it uses as much as digits as its factorization.

66009050303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429864336.

The product of its (nonzero) digits is 14580, while the sum is 32.

The spelling of 66009050303 in words is "sixty-six billion, nine million, fifty thousand, three hundred three".