166103103443 has 2 divisors, whose sum is σ = 166103103444. Its totient is φ = 166103103442.

The previous prime is 166103103431. The next prime is 166103103469. The reversal of 166103103443 is 344301301661.

166103103443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166103103443 - 2²⁴ = 166086326227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (166103103473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83051551721 + 83051551722.

It is an arithmetic number, because the mean of its divisors is an integer number (83051551722).

Almost surely, 2^166103103443 is an apocalyptic number.

166103103443 is a deficient number, since it is larger than the sum of its proper divisors (1).

166103103443 is an equidigital number, since it uses as much as digits as its factorization.

166103103443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 166103103443 in words is "one hundred sixty-six billion, one hundred three million, one hundred three thousand, four hundred forty-three".