66231032017 has 8 divisors (see below), whose sum is σ = 66889756640. Its totient is φ = 65575560960.

The previous prime is 66231031987. The next prime is 66231032051. The reversal of 66231032017 is 71023013266.

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-66231032017 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 66231032017.

It is not an unprimeable number, because it can be changed into a prime (66231032057) 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, 772467 + ... + 853912.

It is an arithmetic number, because the mean of its divisors is an integer number (8361219580).

Almost surely, 2^66231032017 is an apocalyptic number.

It is an amenable number.

66231032017 is a deficient number, since it is larger than the sum of its proper divisors (658724623).

66231032017 is a wasteful number, since it uses less digits than its factorization.

66231032017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626783.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 66231032017 in words is "sixty-six billion, two hundred thirty-one million, thirty-two thousand, seventeen".