165755757119 has 2 divisors, whose sum is σ = 165755757120. Its totient is φ = 165755757118.

The previous prime is 165755757053. The next prime is 165755757221. The reversal of 165755757119 is 911757557561.

It is a happy number.

165755757119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165755757119 is a prime.

It is a super-2 number, since 2×165755757119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165755757019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82877878559 + 82877878560.

It is an arithmetic number, because the mean of its divisors is an integer number (82877878560).

Almost surely, 2^165755757119 is an apocalyptic number.

165755757119 is a deficient number, since it is larger than the sum of its proper divisors (1).

165755757119 is an equidigital number, since it uses as much as digits as its factorization.

165755757119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11576250, while the sum is 59.

The spelling of 165755757119 in words is "one hundred sixty-five billion, seven hundred fifty-five million, seven hundred fifty-seven thousand, one hundred nineteen".