8166373316851 has 2 divisors, whose sum is σ = 8166373316852. Its totient is φ = 8166373316850.

The previous prime is 8166373316807. The next prime is 8166373316873. The reversal of 8166373316851 is 1586133736618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8166373316851 - 2¹⁹ = 8166372792563 is a prime.

It is not a weakly prime, because it can be changed into another prime (8166373316051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083186658425 + 4083186658426.

It is an arithmetic number, because the mean of its divisors is an integer number (4083186658426).

Almost surely, 2^{8166373316851} is an apocalyptic number.

8166373316851 is a deficient number, since it is larger than the sum of its proper divisors (1).

8166373316851 is an equidigital number, since it uses as much as digits as its factorization.

8166373316851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 8166373316851 in words is "eight trillion, one hundred sixty-six billion, three hundred seventy-three million, three hundred sixteen thousand, eight hundred fifty-one".