667340066807 has 8 divisors (see below), whose sum is σ = 669140236800. Its totient is φ = 665540104824.

The previous prime is 667340066749. The next prime is 667340066821. The reversal of 667340066807 is 708660043766.

It is a happy number.

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 667340066807 - 2¹⁶ = 667340001271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667340066857) 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, 8076698 + ... + 8158904.

It is an arithmetic number, because the mean of its divisors is an integer number (83642529600).

Almost surely, 2^667340066807 is an apocalyptic number.

667340066807 is a deficient number, since it is larger than the sum of its proper divisors (1800169993).

667340066807 is a wasteful number, since it uses less digits than its factorization.

667340066807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104005.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 667340066807 in words is "six hundred sixty-seven billion, three hundred forty million, sixty-six thousand, eight hundred seven".