66332094559 has 4 divisors (see below), whose sum is σ = 66332883904. Its totient is φ = 66331305216.

The previous prime is 66332094547. The next prime is 66332094583. The reversal of 66332094559 is 95549023366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66332094559 - 2²⁵ = 66298540127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66332094529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251247 + ... + 442480.

It is an arithmetic number, because the mean of its divisors is an integer number (16583220976).

Almost surely, 2^66332094559 is an apocalyptic number.

66332094559 is a deficient number, since it is larger than the sum of its proper divisors (789345).

66332094559 is an equidigital number, since it uses as much as digits as its factorization.

66332094559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789344.

The product of its (nonzero) digits is 5248800, while the sum is 52.

The spelling of 66332094559 in words is "sixty-six billion, three hundred thirty-two million, ninety-four thousand, five hundred fifty-nine".