66695016707 has 8 divisors (see below), whose sum is σ = 72763331520. Its totient is φ = 60627557160.

The previous prime is 66695016697. The next prime is 66695016757. The reversal of 66695016707 is 70761059666.

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 66695016707 - 2¹⁶ = 66694951171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66695016757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44957 + ... + 367982.

It is an arithmetic number, because the mean of its divisors is an integer number (9095416440).

Almost surely, 2^66695016707 is an apocalyptic number.

66695016707 is a deficient number, since it is larger than the sum of its proper divisors (6068314813).

66695016707 is a wasteful number, since it uses less digits than its factorization.

66695016707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427633.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 66695016707 in words is "sixty-six billion, six hundred ninety-five million, sixteen thousand, seven hundred seven".