165489576713 has 2 divisors, whose sum is σ = 165489576714. Its totient is φ = 165489576712.

The previous prime is 165489576689. The next prime is 165489576757. The reversal of 165489576713 is 317675984561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138267216649 + 27222360064 = 371843^2 + 164992^2 .

It is a cyclic number.

It is not a de Polignac number, because 165489576713 - 2¹⁴ = 165489560329 is a prime.

It is not a weakly prime, because it can be changed into another prime (165449576713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82744788356 + 82744788357.

It is an arithmetic number, because the mean of its divisors is an integer number (82744788357).

Almost surely, 2^165489576713 is an apocalyptic number.

It is an amenable number.

165489576713 is a deficient number, since it is larger than the sum of its proper divisors (1).

165489576713 is an equidigital number, since it uses as much as digits as its factorization.

165489576713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38102400, while the sum is 62.

The spelling of 165489576713 in words is "one hundred sixty-five billion, four hundred eighty-nine million, five hundred seventy-six thousand, seven hundred thirteen".