166901743 has 2 divisors, whose sum is σ = 166901744. Its totient is φ = 166901742.

The previous prime is 166901689. The next prime is 166901773. The reversal of 166901743 is 347109661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166901743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166901773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83450871 + 83450872.

It is an arithmetic number, because the mean of its divisors is an integer number (83450872).

Almost surely, 2^166901743 is an apocalyptic number.

166901743 is a deficient number, since it is larger than the sum of its proper divisors (1).

166901743 is an equidigital number, since it uses as much as digits as its factorization.

166901743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 166901743 is about 12919.0457464938. The cubic root of 166901743 is about 550.5798215829.

The spelling of 166901743 in words is "one hundred sixty-six million, nine hundred one thousand, seven hundred forty-three".