162497559449 has 2 divisors, whose sum is σ = 162497559450. Its totient is φ = 162497559448.

The previous prime is 162497559431. The next prime is 162497559461. The reversal of 162497559449 is 944955794261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117215847424 + 45281712025 = 342368^2 + 212795^2 .

It is an emirp because it is prime and its reverse (944955794261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162497559449 is a prime.

It is not a weakly prime, because it can be changed into another prime (162497558449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81248779724 + 81248779725.

It is an arithmetic number, because the mean of its divisors is an integer number (81248779725).

Almost surely, 2^162497559449 is an apocalyptic number.

It is an amenable number.

162497559449 is a deficient number, since it is larger than the sum of its proper divisors (1).

162497559449 is an equidigital number, since it uses as much as digits as its factorization.

162497559449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97977600, while the sum is 65.

The spelling of 162497559449 in words is "one hundred sixty-two billion, four hundred ninety-seven million, five hundred fifty-nine thousand, four hundred forty-nine".