66666594059 has 8 divisors (see below), whose sum is σ = 74270476560. Its totient is φ = 59416380576.

The previous prime is 66666594019. The next prime is 66666594077. The reversal of 66666594059 is 95049566666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66666594059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66666593992 and 66666594010.

It is not an unprimeable number, because it can be changed into a prime (66666594019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88416857 + ... + 88417610.

It is an arithmetic number, because the mean of its divisors is an integer number (9283809570).

Almost surely, 2^66666594059 is an apocalyptic number.

66666594059 is a deficient number, since it is larger than the sum of its proper divisors (7603882501).

66666594059 is a wasteful number, since it uses less digits than its factorization.

66666594059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176834509.

The product of its (nonzero) digits is 62985600, while the sum is 62.

The spelling of 66666594059 in words is "sixty-six billion, six hundred sixty-six million, five hundred ninety-four thousand, fifty-nine".