166473959 has 2 divisors, whose sum is σ = 166473960. Its totient is φ = 166473958.

The previous prime is 166473943. The next prime is 166474031. The reversal of 166473959 is 959374661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166473959 - 2⁴ = 166473943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166473929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83236979 + 83236980.

It is an arithmetic number, because the mean of its divisors is an integer number (83236980).

Almost surely, 2^166473959 is an apocalyptic number.

166473959 is a deficient number, since it is larger than the sum of its proper divisors (1).

166473959 is an equidigital number, since it uses as much as digits as its factorization.

166473959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 50.

The square root of 166473959 is about 12902.4787928522. The cubic root of 166473959 is about 550.1090241172.

The spelling of 166473959 in words is "one hundred sixty-six million, four hundred seventy-three thousand, nine hundred fifty-nine".