162417710881609 has 2 divisors, whose sum is σ = 162417710881610. Its totient is φ = 162417710881608.

The previous prime is 162417710881589. The next prime is 162417710881619. The reversal of 162417710881609 is 906188017714261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87060936116025 + 75356774765584 = 9330645^2 + 8680828^2 .

It is an emirp because it is prime and its reverse (906188017714261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162417710881609 - 2³⁵ = 162383351143241 is a prime.

It is not a weakly prime, because it can be changed into another prime (162417710881619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81208855440804 + 81208855440805.

It is an arithmetic number, because the mean of its divisors is an integer number (81208855440805).

Almost surely, 2^{162417710881609} is an apocalyptic number.

It is an amenable number.

162417710881609 is a deficient number, since it is larger than the sum of its proper divisors (1).

162417710881609 is an equidigital number, since it uses as much as digits as its factorization.

162417710881609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 162417710881609 in words is "one hundred sixty-two trillion, four hundred seventeen billion, seven hundred ten million, eight hundred eighty-one thousand, six hundred nine".