111665673167 has 16 divisors (see below), whose sum is σ = 118134912000. Its totient is φ = 105256174464.

The previous prime is 111665673151. The next prime is 111665673169. The reversal of 111665673167 is 761376566111.

It is a happy number.

It is not a de Polignac number, because 111665673167 - 2⁴ = 111665673151 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 (111665673169) 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, 9014384 + ... + 9026762.

It is an arithmetic number, because the mean of its divisors is an integer number (7383432000).

Almost surely, 2^111665673167 is an apocalyptic number.

111665673167 is a deficient number, since it is larger than the sum of its proper divisors (6469238833).

111665673167 is a wasteful number, since it uses less digits than its factorization.

111665673167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750.

The product of its digits is 952560, while the sum is 50.

The spelling of 111665673167 in words is "one hundred eleven billion, six hundred sixty-five million, six hundred seventy-three thousand, one hundred sixty-seven".