198898269260616 has 128 divisors (see below), whose sum is σ = 556821872640000. Its totient is φ = 65780419947840.

The previous prime is 198898269260557. The next prime is 198898269260627. The reversal of 198898269260616 is 616062962898891.

198898269260616 is a `hidden beast` number, since 1 + 9 + 8 + 8 + 98 + 269 + 260 + 6 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144160645 + ... + 145533803.

It is an arithmetic number, because the mean of its divisors is an integer number (4350170880000).

Almost surely, 2^{198898269260616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198898269260616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278410936320000).

198898269260616 is an abundant number, since it is smaller than the sum of its proper divisors (357923603379384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198898269260616 is a wasteful number, since it uses less digits than its factorization.

198898269260616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378424 (or 1378414 counting only the distinct ones).

The product of its (nonzero) digits is 1934917632, while the sum is 81.

The spelling of 198898269260616 in words is "one hundred ninety-eight trillion, eight hundred ninety-eight billion, two hundred sixty-nine million, two hundred sixty thousand, six hundred sixteen".