166422359 has 2 divisors, whose sum is σ = 166422360. Its totient is φ = 166422358.

The previous prime is 166422317. The next prime is 166422371. The reversal of 166422359 is 953224661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166422359 - 2⁸ = 166422103 is a prime.

It is a Sophie Germain 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 (166472359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83211179 + 83211180.

It is an arithmetic number, because the mean of its divisors is an integer number (83211180).

Almost surely, 2^166422359 is an apocalyptic number.

166422359 is a deficient number, since it is larger than the sum of its proper divisors (1).

166422359 is an equidigital number, since it uses as much as digits as its factorization.

166422359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 166422359 is about 12900.4790221139. The cubic root of 166422359 is about 550.0521812750.

The spelling of 166422359 in words is "one hundred sixty-six million, four hundred twenty-two thousand, three hundred fifty-nine".