12416454238117 has 2 divisors, whose sum is σ = 12416454238118. Its totient is φ = 12416454238116.

The previous prime is 12416454238109. The next prime is 12416454238157. The reversal of 12416454238117 is 71183245461421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12060798253956 + 355655984161 = 3472866^2 + 596369^2 .

It is a cyclic number.

It is not a de Polignac number, because 12416454238117 - 2³ = 12416454238109 is a prime.

It is a super-2 number, since 2×12416454238117² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12416454238157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6208227119058 + 6208227119059.

It is an arithmetic number, because the mean of its divisors is an integer number (6208227119059).

Almost surely, 2^{12416454238117} is an apocalyptic number.

It is an amenable number.

12416454238117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12416454238117 is an equidigital number, since it uses as much as digits as its factorization.

12416454238117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

Adding to 12416454238117 its reverse (71183245461421), we get a palindrome (83599699699538).

The spelling of 12416454238117 in words is "twelve trillion, four hundred sixteen billion, four hundred fifty-four million, two hundred thirty-eight thousand, one hundred seventeen".