165141751189 has 2 divisors, whose sum is σ = 165141751190. Its totient is φ = 165141751188.

The previous prime is 165141751121. The next prime is 165141751193. The reversal of 165141751189 is 981157141561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162604110564 + 2537640625 = 403242^2 + 50375^2 .

It is a cyclic number.

It is not a de Polignac number, because 165141751189 - 2⁹ = 165141750677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165141761189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82570875594 + 82570875595.

It is an arithmetic number, because the mean of its divisors is an integer number (82570875595).

Almost surely, 2^165141751189 is an apocalyptic number.

It is an amenable number.

165141751189 is a deficient number, since it is larger than the sum of its proper divisors (1).

165141751189 is an equidigital number, since it uses as much as digits as its factorization.

165141751189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 49.

The spelling of 165141751189 in words is "one hundred sixty-five billion, one hundred forty-one million, seven hundred fifty-one thousand, one hundred eighty-nine".