18671153346168 has 128 divisors (see below), whose sum is σ = 46975617748800. Its totient is φ = 6184173993984.

The previous prime is 18671153346127. The next prime is 18671153346193. The reversal of 18671153346168 is 86164335117681.

It is a Cunningham number, because it is equal to 4321013²-1.

It is a super-2 number, since 2×18671153346168² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6723496396 + ... + 6723499172.

Almost surely, 2^{18671153346168} is an apocalyptic number.

It is an amenable number.

18671153346168 is an abundant number, since it is smaller than the sum of its proper divisors (28304464402632).

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

18671153346168 is a wasteful number, since it uses less digits than its factorization.

18671153346168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5649 (or 5645 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The spelling of 18671153346168 in words is "eighteen trillion, six hundred seventy-one billion, one hundred fifty-three million, three hundred forty-six thousand, one hundred sixty-eight".