165116623140229 has 2 divisors, whose sum is σ = 165116623140230. Its totient is φ = 165116623140228.

The previous prime is 165116623140191. The next prime is 165116623140253. The reversal of 165116623140229 is 922041326611561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164739098915329 + 377524224900 = 12835073^2 + 614430^2 .

It is a cyclic number.

It is not a de Polignac number, because 165116623140229 - 2³³ = 165108033205637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165116623440229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82558311570114 + 82558311570115.

It is an arithmetic number, because the mean of its divisors is an integer number (82558311570115).

Almost surely, 2^{165116623140229} is an apocalyptic number.

It is an amenable number.

165116623140229 is a deficient number, since it is larger than the sum of its proper divisors (1).

165116623140229 is an equidigital number, since it uses as much as digits as its factorization.

165116623140229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 165116623140229 in words is "one hundred sixty-five trillion, one hundred sixteen billion, six hundred twenty-three million, one hundred forty thousand, two hundred twenty-nine".