516166373 has 2 divisors, whose sum is σ = 516166374. Its totient is φ = 516166372.

The previous prime is 516166349. The next prime is 516166403. The reversal of 516166373 is 373661615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511573924 + 4592449 = 22618^2 + 2143^2 .

It is a cyclic number.

It is not a de Polignac number, because 516166373 - 2⁶ = 516166309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516166333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258083186 + 258083187.

It is an arithmetic number, because the mean of its divisors is an integer number (258083187).

Almost surely, 2^516166373 is an apocalyptic number.

It is an amenable number.

516166373 is a deficient number, since it is larger than the sum of its proper divisors (1).

516166373 is an equidigital number, since it uses as much as digits as its factorization.

516166373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 516166373 is about 22719.2951695250. The cubic root of 516166373 is about 802.1641263550.

The spelling of 516166373 in words is "five hundred sixteen million, one hundred sixty-six thousand, three hundred seventy-three".