18112161167 has 8 divisors (see below), whose sum is σ = 18303506256. Its totient is φ = 17920910592.

The previous prime is 18112161163. The next prime is 18112161169. The reversal of 18112161167 is 76116121181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18112161167 - 2² = 18112161163 is a prime.

It is a super-3 number, since 3×18112161167³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18112161163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401813 + ... + 444609.

It is an arithmetic number, because the mean of its divisors is an integer number (2287938282).

Almost surely, 2^18112161167 is an apocalyptic number.

18112161167 is a deficient number, since it is larger than the sum of its proper divisors (191345089).

18112161167 is an equidigital number, since it uses as much as digits as its factorization.

18112161167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47257.

The product of its digits is 4032, while the sum is 35.

The spelling of 18112161167 in words is "eighteen billion, one hundred twelve million, one hundred sixty-one thousand, one hundred sixty-seven".