66666666677007 has 8 divisors (see below), whose sum is σ = 88990244537776. Its totient is φ = 44393766633792.

The previous prime is 66666666676937. The next prime is 66666666677089. The reversal of 66666666677007 is 70077666666666.

66666666677007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66666666677007 - 2¹² = 66666666672911 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 66666666677007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66666666687007) 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, 12669451318 + ... + 12669456579.

It is an arithmetic number, because the mean of its divisors is an integer number (11123780567222).

Almost surely, 2^{66666666677007} is an apocalyptic number.

66666666677007 is a deficient number, since it is larger than the sum of its proper divisors (22323577860769).

66666666677007 is a wasteful number, since it uses less digits than its factorization.

66666666677007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25338908777.

The product of its (nonzero) digits is 3456649728, while the sum is 75.

The spelling of 66666666677007 in words is "sixty-six trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred seventy-seven thousand, seven".