5681606173 has 2 divisors, whose sum is σ = 5681606174. Its totient is φ = 5681606172.

The previous prime is 5681606171. The next prime is 5681606179. The reversal of 5681606173 is 3716061865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3070600569 + 2611005604 = 55413^2 + 51098^2 .

It is a cyclic number.

It is not a de Polignac number, because 5681606173 - 2¹ = 5681606171 is a prime.

Together with 5681606171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5681606171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840803086 + 2840803087.

It is an arithmetic number, because the mean of its divisors is an integer number (2840803087).

Almost surely, 2^5681606173 is an apocalyptic number.

It is an amenable number.

5681606173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681606173 is an equidigital number, since it uses as much as digits as its factorization.

5681606173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 5681606173 is about 75376.4298239178. The cubic root of 5681606173 is about 1784.3924442002.

The spelling of 5681606173 in words is "five billion, six hundred eighty-one million, six hundred six thousand, one hundred seventy-three".