66660615106 has 8 divisors (see below), whose sum is σ = 101685684240. Its totient is φ = 32765387028.

The previous prime is 66660615097. The next prime is 66660615107. The reversal of 66660615106 is 60151606666.

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

It is not an unprimeable number, because it can be changed into a prime (66660615107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282460116 + ... + 282460351.

It is an arithmetic number, because the mean of its divisors is an integer number (12710710530).

Almost surely, 2^66660615106 is an apocalyptic number.

66660615106 is a deficient number, since it is larger than the sum of its proper divisors (35025069134).

66660615106 is a wasteful number, since it uses less digits than its factorization.

66660615106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564920528.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 66660615106 in words is "sixty-six billion, six hundred sixty million, six hundred fifteen thousand, one hundred six".