2112166162173 has 12 divisors (see below), whose sum is σ = 2916681299168. Its totient is φ = 1359555229200.

The previous prime is 2112166162111. The next prime is 2112166162189. The reversal of 2112166162173 is 3712616612112.

It is not a de Polignac number, because 2112166162173 - 2²² = 2112161967869 is a prime.

It is a super-2 number, since 2×2112166162173² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112166162193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418579753 + ... + 418584798.

Almost surely, 2^{2112166162173} is an apocalyptic number.

It is an amenable number.

2112166162173 is a deficient number, since it is larger than the sum of its proper divisors (804515136995).

2112166162173 is an equidigital number, since it uses as much as digits as its factorization.

2112166162173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837164612 (or 837164583 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The spelling of 2112166162173 in words is "two trillion, one hundred twelve billion, one hundred sixty-six million, one hundred sixty-two thousand, one hundred seventy-three".