162498518681209 has 2 divisors, whose sum is σ = 162498518681210. Its totient is φ = 162498518681208.

The previous prime is 162498518681203. The next prime is 162498518681281. The reversal of 162498518681209 is 902186815894261.

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., 162209440405609 + 289078275600 = 12736147^2 + 537660^2 .

It is a cyclic number.

It is not a de Polignac number, because 162498518681209 - 2⁹ = 162498518680697 is a prime.

It is not a weakly prime, because it can be changed into another prime (162498518681203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81249259340604 + 81249259340605.

It is an arithmetic number, because the mean of its divisors is an integer number (81249259340605).

Almost surely, 2^{162498518681209} is an apocalyptic number.

It is an amenable number.

162498518681209 is a deficient number, since it is larger than the sum of its proper divisors (1).

162498518681209 is an equidigital number, since it uses as much as digits as its factorization.

162498518681209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119439360, while the sum is 70.

The spelling of 162498518681209 in words is "one hundred sixty-two trillion, four hundred ninety-eight billion, five hundred eighteen million, six hundred eighty-one thousand, two hundred nine".