667231218414 has 24 divisors (see below), whose sum is σ = 1450228118040. Its totient is φ = 221708794128.

The previous prime is 667231218373. The next prime is 667231218439. The reversal of 667231218414 is 414812132766.

It is a self number, because there is not a number n which added to its sum of digits gives 667231218414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58461804 + ... + 58473215.

It is an arithmetic number, because the mean of its divisors is an integer number (60426171585).

Almost surely, 2^667231218414 is an apocalyptic number.

667231218414 is an abundant number, since it is smaller than the sum of its proper divisors (782996899626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667231218414 is a wasteful number, since it uses less digits than its factorization.

667231218414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116935344 (or 116935341 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 667231218414 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred eighteen thousand, four hundred fourteen".