20346162173 has 8 divisors (see below), whose sum is σ = 21620772792. Its totient is φ = 19080193536.

The previous prime is 20346162121. The next prime is 20346162197. The reversal of 20346162173 is 37126164302.

It can be written as a sum of positive squares in 4 ways, for example, as 646074724 + 19700087449 = 25418^2 + 140357^2 .

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 20346162173 - 2¹⁶ = 20346096637 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 (20346162773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155640 + ... + 2165057.

It is an arithmetic number, because the mean of its divisors is an integer number (2702596599).

Almost surely, 2^20346162173 is an apocalyptic number.

It is an amenable number.

20346162173 is a deficient number, since it is larger than the sum of its proper divisors (1274610619).

20346162173 is a wasteful number, since it uses less digits than its factorization.

20346162173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320991.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20346162173 in words is "twenty billion, three hundred forty-six million, one hundred sixty-two thousand, one hundred seventy-three".