198249113168 has 10 divisors (see below), whose sum is σ = 384107656794. Its totient is φ = 99124556576.

The previous prime is 198249113137. The next prime is 198249113177. The reversal of 198249113168 is 861311942891.

It can be written as a sum of positive squares in only one way, i.e., 141036300304 + 57212812864 = 375548^2 + 239192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6195284771 + ... + 6195284802.

Almost surely, 2^198249113168 is an apocalyptic number.

It is an amenable number.

198249113168 is a deficient number, since it is larger than the sum of its proper divisors (185858543626).

198249113168 is a wasteful number, since it uses less digits than its factorization.

198249113168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12390569581 (or 12390569575 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The spelling of 198249113168 in words is "one hundred ninety-eight billion, two hundred forty-nine million, one hundred thirteen thousand, one hundred sixty-eight".