165130532389 has 2 divisors, whose sum is σ = 165130532390. Its totient is φ = 165130532388.

The previous prime is 165130532387. The next prime is 165130532423. The reversal of 165130532389 is 983235031561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137919390625 + 27211141764 = 371375^2 + 164958^2 .

It is a cyclic number.

It is not a de Polignac number, because 165130532389 - 2¹ = 165130532387 is a prime.

It is a super-3 number, since 3×165130532389³ (a number of 35 digits) contains 333 as substring.

Together with 165130532387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165130532387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82565266194 + 82565266195.

It is an arithmetic number, because the mean of its divisors is an integer number (82565266195).

Almost surely, 2^165130532389 is an apocalyptic number.

It is an amenable number.

165130532389 is a deficient number, since it is larger than the sum of its proper divisors (1).

165130532389 is an equidigital number, since it uses as much as digits as its factorization.

165130532389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 165130532389 in words is "one hundred sixty-five billion, one hundred thirty million, five hundred thirty-two thousand, three hundred eighty-nine".