198348133584961 has 2 divisors, whose sum is σ = 198348133584962. Its totient is φ = 198348133584960.

The previous prime is 198348133584943. The next prime is 198348133585067. The reversal of 198348133584961 is 169485331843891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193306060937025 + 5042072647936 = 13903455^2 + 2245456^2 .

It is a cyclic number.

It is not a de Polignac number, because 198348133584961 - 2⁷ = 198348133584833 is a prime.

It is not a weakly prime, because it can be changed into another prime (198348133084961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99174066792480 + 99174066792481.

It is an arithmetic number, because the mean of its divisors is an integer number (99174066792481).

Almost surely, 2^{198348133584961} is an apocalyptic number.

It is an amenable number.

198348133584961 is a deficient number, since it is larger than the sum of its proper divisors (1).

198348133584961 is an equidigital number, since it uses as much as digits as its factorization.

198348133584961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537477120, while the sum is 73.

The spelling of 198348133584961 in words is "one hundred ninety-eight trillion, three hundred forty-eight billion, one hundred thirty-three million, five hundred eighty-four thousand, nine hundred sixty-one".