66706700674067 has 8 divisors (see below), whose sum is σ = 66889644060096. Its totient is φ = 66523928667112.

The previous prime is 66706700674007. The next prime is 66706700674127. The reversal of 66706700674067 is 76047600760766.

It is a happy number.

66706700674067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66706700674007) and next prime (66706700674127).

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 66706700674067 - 2¹⁶ = 66706700608531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66706700674007) 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, 42065213 + ... + 43622190.

It is an arithmetic number, because the mean of its divisors is an integer number (8361205507512).

Almost surely, 2^{66706700674067} is an apocalyptic number.

66706700674067 is a deficient number, since it is larger than the sum of its proper divisors (182943386029).

66706700674067 is a wasteful number, since it uses less digits than its factorization.

66706700674067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85689537.

The product of its (nonzero) digits is 74680704, while the sum is 62.

The spelling of 66706700674067 in words is "sixty-six trillion, seven hundred six billion, seven hundred million, six hundred seventy-four thousand, sixty-seven".