165544027151 has 2 divisors, whose sum is σ = 165544027152. Its totient is φ = 165544027150.

The previous prime is 165544027109. The next prime is 165544027169. The reversal of 165544027151 is 151720445561.

It is a strong prime.

It is an emirp because it is prime and its reverse (151720445561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165544027151 - 2¹⁰ = 165544026127 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 165544027099 and 165544027108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165544027751) 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, 82772013575 + 82772013576.

It is an arithmetic number, because the mean of its divisors is an integer number (82772013576).

Almost surely, 2^165544027151 is an apocalyptic number.

165544027151 is a deficient number, since it is larger than the sum of its proper divisors (1).

165544027151 is an equidigital number, since it uses as much as digits as its factorization.

165544027151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 165544027151 in words is "one hundred sixty-five billion, five hundred forty-four million, twenty-seven thousand, one hundred fifty-one".