66011888305 has 8 divisors (see below), whose sum is σ = 86415562944. Its totient is φ = 48008646000.

The previous prime is 66011888303. The next prime is 66011888329. The reversal of 66011888305 is 50388811066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66011888305 - 2¹ = 66011888303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66011888303) 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 7 ways as a sum of consecutive naturals, for example, 600108021 + ... + 600108130.

It is an arithmetic number, because the mean of its divisors is an integer number (10801945368).

Almost surely, 2^66011888305 is an apocalyptic number.

It is an amenable number.

66011888305 is a deficient number, since it is larger than the sum of its proper divisors (20403674639).

66011888305 is a wasteful number, since it uses less digits than its factorization.

66011888305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200216167.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 66011888305 in words is "sixty-six billion, eleven million, eight hundred eighty-eight thousand, three hundred five".