166955741 has 2 divisors, whose sum is σ = 166955742. Its totient is φ = 166955740.

The previous prime is 166955699. The next prime is 166955749. The reversal of 166955741 is 147559661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 74891716 = 9595^2 + 8654^2 .

It is a cyclic number.

It is not a de Polignac number, because 166955741 - 2²² = 162761437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166955692 and 166955701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166955749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83477870 + 83477871.

It is an arithmetic number, because the mean of its divisors is an integer number (83477871).

Almost surely, 2^166955741 is an apocalyptic number.

It is an amenable number.

166955741 is a deficient number, since it is larger than the sum of its proper divisors (1).

166955741 is an equidigital number, since it uses as much as digits as its factorization.

166955741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 166955741 is about 12921.1354377237. The cubic root of 166955741 is about 550.6391918508.

The spelling of 166955741 in words is "one hundred sixty-six million, nine hundred fifty-five thousand, seven hundred forty-one".