68098964161 has 2 divisors, whose sum is σ = 68098964162. Its totient is φ = 68098964160.

The previous prime is 68098964159. The next prime is 68098964173. The reversal of 68098964161 is 16146989086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64487555136 + 3611409025 = 253944^2 + 60095^2 .

It is a cyclic number.

It is not a de Polignac number, because 68098964161 - 2¹ = 68098964159 is a prime.

Together with 68098964159, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68098964096 and 68098964105.

It is not a weakly prime, because it can be changed into another prime (68098965161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34049482080 + 34049482081.

It is an arithmetic number, because the mean of its divisors is an integer number (34049482081).

Almost surely, 2^68098964161 is an apocalyptic number.

It is an amenable number.

68098964161 is a deficient number, since it is larger than the sum of its proper divisors (1).

68098964161 is an equidigital number, since it uses as much as digits as its factorization.

68098964161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 68098964161 in words is "sixty-eight billion, ninety-eight million, nine hundred sixty-four thousand, one hundred sixty-one".