667214181117 has 24 divisors (see below), whose sum is σ = 1053795969408. Its totient is φ = 403438320000.

The previous prime is 667214181113. The next prime is 667214181149. The reversal of 667214181117 is 711181412766.

It is not a de Polignac number, because 667214181117 - 2² = 667214181113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667214181113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7739509 + ... + 7825242.

It is an arithmetic number, because the mean of its divisors is an integer number (43908165392).

Almost surely, 2^667214181117 is an apocalyptic number.

It is an amenable number.

667214181117 is a deficient number, since it is larger than the sum of its proper divisors (386581788291).

667214181117 is a wasteful number, since it uses less digits than its factorization.

667214181117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15565201 (or 15565198 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The spelling of 667214181117 in words is "six hundred sixty-seven billion, two hundred fourteen million, one hundred eighty-one thousand, one hundred seventeen".