5213566646173 has 2 divisors, whose sum is σ = 5213566646174. Its totient is φ = 5213566646172.

The previous prime is 5213566646083. The next prime is 5213566646219. The reversal of 5213566646173 is 3716466653125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4411499527449 + 802067118724 = 2100357^2 + 895582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5213566646173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5213566446173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606783323086 + 2606783323087.

It is an arithmetic number, because the mean of its divisors is an integer number (2606783323087).

Almost surely, 2^{5213566646173} is an apocalyptic number.

It is an amenable number.

5213566646173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5213566646173 is an equidigital number, since it uses as much as digits as its factorization.

5213566646173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 55.

The spelling of 5213566646173 in words is "five trillion, two hundred thirteen billion, five hundred sixty-six million, six hundred forty-six thousand, one hundred seventy-three".