8166420144271 has 2 divisors, whose sum is σ = 8166420144272. Its totient is φ = 8166420144270.

The previous prime is 8166420144251. The next prime is 8166420144383. The reversal of 8166420144271 is 1724410246618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8166420144271 - 2¹³ = 8166420136079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8166420144251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083210072135 + 4083210072136.

It is an arithmetic number, because the mean of its divisors is an integer number (4083210072136).

Almost surely, 2^{8166420144271} is an apocalyptic number.

8166420144271 is a deficient number, since it is larger than the sum of its proper divisors (1).

8166420144271 is an equidigital number, since it uses as much as digits as its factorization.

8166420144271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 8166420144271 in words is "eight trillion, one hundred sixty-six billion, four hundred twenty million, one hundred forty-four thousand, two hundred seventy-one".