66086833607 has 4 divisors (see below), whose sum is σ = 66370468320. Its totient is φ = 65803198896.

The previous prime is 66086833591. The next prime is 66086833649. The reversal of 66086833607 is 70633868066.

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 66086833607 - 2⁴ = 66086833591 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 (66086833667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141817007 + ... + 141817472.

It is an arithmetic number, because the mean of its divisors is an integer number (16592617080).

Almost surely, 2^66086833607 is an apocalyptic number.

66086833607 is a deficient number, since it is larger than the sum of its proper divisors (283634713).

66086833607 is a wasteful number, since it uses less digits than its factorization.

66086833607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283634712.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 66086833607 in words is "sixty-six billion, eighty-six million, eight hundred thirty-three thousand, six hundred seven".