168888716419 has 2 divisors, whose sum is σ = 168888716420. Its totient is φ = 168888716418.

The previous prime is 168888716417. The next prime is 168888716429. The reversal of 168888716419 is 914617888861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168888716419 - 2¹ = 168888716417 is a prime.

It is a super-2 number, since 2×168888716419² (a number of 23 digits) contains 22 as substring.

Together with 168888716417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (168888716417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84444358209 + 84444358210.

It is an arithmetic number, because the mean of its divisors is an integer number (84444358210).

Almost surely, 2^168888716419 is an apocalyptic number.

168888716419 is a deficient number, since it is larger than the sum of its proper divisors (1).

168888716419 is an equidigital number, since it uses as much as digits as its factorization.

168888716419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37158912, while the sum is 67.

The spelling of 168888716419 in words is "one hundred sixty-eight billion, eight hundred eighty-eight million, seven hundred sixteen thousand, four hundred nineteen".