166768326143 has 2 divisors, whose sum is σ = 166768326144. Its totient is φ = 166768326142.

The previous prime is 166768326121. The next prime is 166768326161. The reversal of 166768326143 is 341623867661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166768326143 - 2³⁴ = 149588456959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166768326743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83384163071 + 83384163072.

It is an arithmetic number, because the mean of its divisors is an integer number (83384163072).

Almost surely, 2^166768326143 is an apocalyptic number.

166768326143 is a deficient number, since it is larger than the sum of its proper divisors (1).

166768326143 is an equidigital number, since it uses as much as digits as its factorization.

166768326143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 53.

The spelling of 166768326143 in words is "one hundred sixty-six billion, seven hundred sixty-eight million, three hundred twenty-six thousand, one hundred forty-three".