66433166459 has 8 divisors (see below), whose sum is σ = 72528784560. Its totient is φ = 60346921600.

The previous prime is 66433166441. The next prime is 66433166461. The reversal of 66433166459 is 95466133466.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 66433166459 - 2⁸ = 66433166203 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 66433166459.

It is not an unprimeable number, because it can be changed into a prime (66433162459) 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, 2328482 + ... + 2356839.

It is an arithmetic number, because the mean of its divisors is an integer number (9066098070).

Almost surely, 2^66433166459 is an apocalyptic number.

66433166459 is a deficient number, since it is larger than the sum of its proper divisors (6095618101).

66433166459 is a wasteful number, since it uses less digits than its factorization.

66433166459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686621.

The product of its digits is 8398080, while the sum is 53.

The spelling of 66433166459 in words is "sixty-six billion, four hundred thirty-three million, one hundred sixty-six thousand, four hundred fifty-nine".