66707073370667 has 8 divisors (see below), whose sum is σ = 67801499176320. Its totient is φ = 65612675540160.

The previous prime is 66707073370589. The next prime is 66707073370699. The reversal of 66707073370667 is 76607337070766.

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 66707073370667 - 2²⁶ = 66707006261803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66707073370867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158442 + ... + 11750447.

It is an arithmetic number, because the mean of its divisors is an integer number (8475187397040).

Almost surely, 2^{66707073370667} is an apocalyptic number.

66707073370667 is a deficient number, since it is larger than the sum of its proper divisors (1094425805653).

66707073370667 is a wasteful number, since it uses less digits than its factorization.

66707073370667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13987573.

The product of its (nonzero) digits is 196036848, while the sum is 65.

The spelling of 66707073370667 in words is "sixty-six trillion, seven hundred seven billion, seventy-three million, three hundred seventy thousand, six hundred sixty-seven".