220002000173 has 2 divisors, whose sum is σ = 220002000174. Its totient is φ = 220002000172.

The previous prime is 220002000139. The next prime is 220002000269. The reversal of 220002000173 is 371000200022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216994793929 + 3007206244 = 465827^2 + 54838^2 .

It is a cyclic number.

It is not a de Polignac number, because 220002000173 - 2¹⁶ = 220001934637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220002090173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110001000086 + 110001000087.

It is an arithmetic number, because the mean of its divisors is an integer number (110001000087).

Almost surely, 2^220002000173 is an apocalyptic number.

It is an amenable number.

220002000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

220002000173 is an equidigital number, since it uses as much as digits as its factorization.

220002000173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

Adding to 220002000173 its reverse (371000200022), we get a palindrome (591002200195).

The spelling of 220002000173 in words is "two hundred twenty billion, two million, one hundred seventy-three", and thus it is an aban number.