198892065124 has 6 divisors (see below), whose sum is σ = 348061113974. Its totient is φ = 99446032560.

The previous prime is 198892065079. The next prime is 198892065133. The reversal of 198892065124 is 421560298891.

It can be written as a sum of positive squares in only one way, i.e., 190479873600 + 8412191524 = 436440^2 + 91718^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24861508137 + ... + 24861508144.

Almost surely, 2^198892065124 is an apocalyptic number.

It is an amenable number.

198892065124 is a deficient number, since it is larger than the sum of its proper divisors (149169048850).

198892065124 is a wasteful number, since it uses less digits than its factorization.

198892065124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49723016285 (or 49723016283 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 198892065124 in words is "one hundred ninety-eight billion, eight hundred ninety-two million, sixty-five thousand, one hundred twenty-four".