162166559 has 2 divisors, whose sum is σ = 162166560. Its totient is φ = 162166558.

The previous prime is 162166541. The next prime is 162166561. The reversal of 162166559 is 955661261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162166559 - 2¹² = 162162463 is a prime.

Together with 162166561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162106559) 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, 81083279 + 81083280.

It is an arithmetic number, because the mean of its divisors is an integer number (81083280).

Almost surely, 2^162166559 is an apocalyptic number.

162166559 is a deficient number, since it is larger than the sum of its proper divisors (1).

162166559 is an equidigital number, since it uses as much as digits as its factorization.

162166559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 162166559 is about 12734.4634358892. The cubic root of 162166559 is about 545.3229396539.

The spelling of 162166559 in words is "one hundred sixty-two million, one hundred sixty-six thousand, five hundred fifty-nine".