166351426110043 has 2 divisors, whose sum is σ = 166351426110044. Its totient is φ = 166351426110042.

The previous prime is 166351426110031. The next prime is 166351426110049. The reversal of 166351426110043 is 340011624153661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166351426110043 is a prime.

It is not a weakly prime, because it can be changed into another prime (166351426110049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83175713055021 + 83175713055022.

It is an arithmetic number, because the mean of its divisors is an integer number (83175713055022).

Almost surely, 2^{166351426110043} is an apocalyptic number.

166351426110043 is a deficient number, since it is larger than the sum of its proper divisors (1).

166351426110043 is an equidigital number, since it uses as much as digits as its factorization.

166351426110043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 166351426110043 in words is "one hundred sixty-six trillion, three hundred fifty-one billion, four hundred twenty-six million, one hundred ten thousand, forty-three".