7066660666607 has 4 divisors (see below), whose sum is σ = 7294617462336. Its totient is φ = 6838703870880.

The previous prime is 7066660666603. The next prime is 7066660666613.

It is a happy number.

7066660666607 is nontrivially palindromic in base 10.

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 7066660666607 - 2² = 7066660666603 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 7066660666607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066660666601) 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, 113978397818 + ... + 113978397879.

It is an arithmetic number, because the mean of its divisors is an integer number (1823654365584).

Almost surely, 2^{7066660666607} is an apocalyptic number.

7066660666607 is a deficient number, since it is larger than the sum of its proper divisors (227956795729).

7066660666607 is a wasteful number, since it uses less digits than its factorization.

7066660666607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227956795728.

The product of its (nonzero) digits is 82301184, while the sum is 62.

The spelling of 7066660666607 in words is "seven trillion, sixty-six billion, six hundred sixty million, six hundred sixty-six thousand, six hundred seven".