161098713211 has 2 divisors, whose sum is σ = 161098713212. Its totient is φ = 161098713210.

The previous prime is 161098713203. The next prime is 161098713241. The reversal of 161098713211 is 112317890161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161098713211 - 2³ = 161098713203 is a prime.

It is not a weakly prime, because it can be changed into another prime (161098713241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80549356605 + 80549356606.

It is an arithmetic number, because the mean of its divisors is an integer number (80549356606).

Almost surely, 2^161098713211 is an apocalyptic number.

161098713211 is a deficient number, since it is larger than the sum of its proper divisors (1).

161098713211 is an equidigital number, since it uses as much as digits as its factorization.

161098713211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 161098713211 in words is "one hundred sixty-one billion, ninety-eight million, seven hundred thirteen thousand, two hundred eleven".