8416859193601 has 2 divisors, whose sum is σ = 8416859193602. Its totient is φ = 8416859193600.

The previous prime is 8416859193599. The next prime is 8416859193607. The reversal of 8416859193601 is 1063919586148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4747626999025 + 3669232194576 = 2178905^2 + 1915524^2 .

It is a cyclic number.

It is not a de Polignac number, because 8416859193601 - 2¹ = 8416859193599 is a prime.

Together with 8416859193599, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8416859193601.

It is not a weakly prime, because it can be changed into another prime (8416859193607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4208429596800 + 4208429596801.

It is an arithmetic number, because the mean of its divisors is an integer number (4208429596801).

Almost surely, 2^{8416859193601} is an apocalyptic number.

It is an amenable number.

8416859193601 is a deficient number, since it is larger than the sum of its proper divisors (1).

8416859193601 is an equidigital number, since it uses as much as digits as its factorization.

8416859193601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 8416859193601 in words is "eight trillion, four hundred sixteen billion, eight hundred fifty-nine million, one hundred ninety-three thousand, six hundred one".