166331743 has 2 divisors, whose sum is σ = 166331744. Its totient is φ = 166331742.

The previous prime is 166331717. The next prime is 166331747. The reversal of 166331743 is 347133661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166331743 - 2¹³ = 166323551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166331699 and 166331708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166331747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83165871 + 83165872.

It is an arithmetic number, because the mean of its divisors is an integer number (83165872).

Almost surely, 2^166331743 is an apocalyptic number.

166331743 is a deficient number, since it is larger than the sum of its proper divisors (1).

166331743 is an equidigital number, since it uses as much as digits as its factorization.

166331743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 166331743 is about 12896.9664262570. The cubic root of 166331743 is about 549.9523297527.

The spelling of 166331743 in words is "one hundred sixty-six million, three hundred thirty-one thousand, seven hundred forty-three".