166683335141 has 2 divisors, whose sum is σ = 166683335142. Its totient is φ = 166683335140.

The previous prime is 166683335129. The next prime is 166683335201. The reversal of 166683335141 is 141533386661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97393302241 + 69290032900 = 312079^2 + 263230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166683335141 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166683335341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83341667570 + 83341667571.

It is an arithmetic number, because the mean of its divisors is an integer number (83341667571).

Almost surely, 2^166683335141 is an apocalyptic number.

It is an amenable number.

166683335141 is a deficient number, since it is larger than the sum of its proper divisors (1).

166683335141 is an equidigital number, since it uses as much as digits as its factorization.

166683335141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 47.

The spelling of 166683335141 in words is "one hundred sixty-six billion, six hundred eighty-three million, three hundred thirty-five thousand, one hundred forty-one".