667648567223 has 16 divisors (see below), whose sum is σ = 753834591360. Its totient is φ = 585731848800.

The previous prime is 667648567213. The next prime is 667648567241. The reversal of 667648567223 is 322765846766.

It is a cyclic number.

It is not a de Polignac number, because 667648567223 - 2⁴ = 667648567207 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 (667648567213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121136 + ... + 1161882.

It is an arithmetic number, because the mean of its divisors is an integer number (47114661960).

Almost surely, 2^667648567223 is an apocalyptic number.

667648567223 is a deficient number, since it is larger than the sum of its proper divisors (86186024137).

667648567223 is a wasteful number, since it uses less digits than its factorization.

667648567223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042798.

The product of its digits is 121927680, while the sum is 62.

The spelling of 667648567223 in words is "six hundred sixty-seven billion, six hundred forty-eight million, five hundred sixty-seven thousand, two hundred twenty-three".