198770088071 has 2 divisors, whose sum is σ = 198770088072. Its totient is φ = 198770088070.

The previous prime is 198770088067. The next prime is 198770088103. The reversal of 198770088071 is 170880077891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198770088071 - 2² = 198770088067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198770087998 and 198770088016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198770088061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99385044035 + 99385044036.

It is an arithmetic number, because the mean of its divisors is an integer number (99385044036).

Almost surely, 2^198770088071 is an apocalyptic number.

198770088071 is a deficient number, since it is larger than the sum of its proper divisors (1).

198770088071 is an equidigital number, since it uses as much as digits as its factorization.

198770088071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 56.

The spelling of 198770088071 in words is "one hundred ninety-eight billion, seven hundred seventy million, eighty-eight thousand, seventy-one".