667183347647 has 8 divisors (see below), whose sum is σ = 678583758480. Its totient is φ = 655786010880.

The previous prime is 667183347637. The next prime is 667183347683. The reversal of 667183347647 is 746743381766.

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 667183347647 - 2⁴ = 667183347631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667183347647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667183347637) 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, 328604 + ... + 1200977.

It is an arithmetic number, because the mean of its divisors is an integer number (84822969810).

Almost surely, 2^667183347647 is an apocalyptic number.

667183347647 is a deficient number, since it is larger than the sum of its proper divisors (11400410833).

667183347647 is a wasteful number, since it uses less digits than its factorization.

667183347647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537033.

The product of its digits is 85349376, while the sum is 62.

The spelling of 667183347647 in words is "six hundred sixty-seven billion, one hundred eighty-three million, three hundred forty-seven thousand, six hundred forty-seven".