166535041 has 2 divisors, whose sum is σ = 166535042. Its totient is φ = 166535040.

The previous prime is 166535027. The next prime is 166535051. The reversal of 166535041 is 140535661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166281025 + 254016 = 12895^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 166535041 - 2¹⁹ = 166010753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166534994 and 166535012.

It is not a weakly prime, because it can be changed into another prime (166535051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83267520 + 83267521.

It is an arithmetic number, because the mean of its divisors is an integer number (83267521).

Almost surely, 2^166535041 is an apocalyptic number.

It is an amenable number.

166535041 is a deficient number, since it is larger than the sum of its proper divisors (1).

166535041 is an equidigital number, since it uses as much as digits as its factorization.

166535041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 166535041 is about 12904.8456403012. The cubic root of 166535041 is about 550.1762972026.

The spelling of 166535041 in words is "one hundred sixty-six million, five hundred thirty-five thousand, forty-one".