20173065183 has 6 divisors (see below), whose sum is σ = 29138871944. Its totient is φ = 13448710116.

The previous prime is 20173065179. The next prime is 20173065197. The reversal of 20173065183 is 38156037102.

It is not a de Polignac number, because 20173065183 - 2² = 20173065179 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 (20173055183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1120725835 + ... + 1120725852.

Almost surely, 2^20173065183 is an apocalyptic number.

20173065183 is a deficient number, since it is larger than the sum of its proper divisors (8965806761).

20173065183 is a wasteful number, since it uses less digits than its factorization.

20173065183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241451693 (or 2241451690 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 20173065183 in words is "twenty billion, one hundred seventy-three million, sixty-five thousand, one hundred eighty-three".