66234232217 has 8 divisors (see below), whose sum is σ = 66335035200. Its totient is φ = 66133508400.

The previous prime is 66234232187. The next prime is 66234232241. The reversal of 66234232217 is 71223243266.

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-66234232217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66234232517) 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, 1776467 + ... + 1813367.

It is an arithmetic number, because the mean of its divisors is an integer number (8291879400).

Almost surely, 2^66234232217 is an apocalyptic number.

It is an amenable number.

66234232217 is a deficient number, since it is larger than the sum of its proper divisors (100802983).

66234232217 is a wasteful number, since it uses less digits than its factorization.

66234232217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39583.

The product of its digits is 145152, while the sum is 38.

The spelling of 66234232217 in words is "sixty-six billion, two hundred thirty-four million, two hundred thirty-two thousand, two hundred seventeen".