12162757198517 has 2 divisors, whose sum is σ = 12162757198518. Its totient is φ = 12162757198516.

The previous prime is 12162757198483. The next prime is 12162757198519. The reversal of 12162757198517 is 71589175726121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11455693159876 + 707064038641 = 3384626^2 + 840871^2 .

It is a cyclic number.

It is not a de Polignac number, because 12162757198517 - 2¹² = 12162757194421 is a prime.

Together with 12162757198519, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12162757198517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12162757198519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081378599258 + 6081378599259.

It is an arithmetic number, because the mean of its divisors is an integer number (6081378599259).

Almost surely, 2^{12162757198517} is an apocalyptic number.

It is an amenable number.

12162757198517 is a deficient number, since it is larger than the sum of its proper divisors (1).

12162757198517 is an equidigital number, since it uses as much as digits as its factorization.

12162757198517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14817600, while the sum is 62.

The spelling of 12162757198517 in words is "twelve trillion, one hundred sixty-two billion, seven hundred fifty-seven million, one hundred ninety-eight thousand, five hundred seventeen".