66704073667 has 8 divisors (see below), whose sum is σ = 83163520512. Its totient is φ = 51977200200.

The previous prime is 66704073649. The next prime is 66704073671. The reversal of 66704073667 is 76637040766.

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 66704073667 - 2¹⁵ = 66704040899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66704073647) 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, 433143259 + ... + 433143412.

It is an arithmetic number, because the mean of its divisors is an integer number (10395440064).

Almost surely, 2^66704073667 is an apocalyptic number.

66704073667 is a deficient number, since it is larger than the sum of its proper divisors (16459446845).

66704073667 is a wasteful number, since it uses less digits than its factorization.

66704073667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866286689.

The product of its (nonzero) digits is 5334336, while the sum is 52.

The spelling of 66704073667 in words is "sixty-six billion, seven hundred four million, seventy-three thousand, six hundred sixty-seven".