667366770474717 has 8 divisors (see below), whose sum is σ = 928510289356224. Its totient is φ = 425567215954848.

The previous prime is 667366770474709. The next prime is 667366770474749. The reversal of 667366770474717 is 717474077663766.

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

It is not a de Polignac number, because 667366770474717 - 2³ = 667366770474709 is a prime.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667366770474787) 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, 4835991090328 + ... + 4835991090465.

It is an arithmetic number, because the mean of its divisors is an integer number (116063786169528).

Almost surely, 2^{667366770474717} is an apocalyptic number.

It is an amenable number.

667366770474717 is a deficient number, since it is larger than the sum of its proper divisors (261143518881507).

667366770474717 is a wasteful number, since it uses less digits than its factorization.

667366770474717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671982180819.

The product of its (nonzero) digits is 7318708992, while the sum is 78.

The spelling of 667366770474717 in words is "six hundred sixty-seven trillion, three hundred sixty-six billion, seven hundred seventy million, four hundred seventy-four thousand, seven hundred seventeen".