198651102120 has 192 divisors, whose sum is σ = 674358048000. Its totient is φ = 50619909120.

The previous prime is 198651102107. The next prime is 198651102151. The reversal of 198651102120 is 21201156891.

198651102120 is a `hidden beast` number, since 19 + 8 + 6 + 511 + 0 + 2 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8674285 + ... + 8697155.

It is an arithmetic number, because the mean of its divisors is an integer number (3512281500).

Almost surely, 2^198651102120 is an apocalyptic number.

198651102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198651102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337179024000).

198651102120 is an abundant number, since it is smaller than the sum of its proper divisors (475706945880).

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

198651102120 is a wasteful number, since it uses less digits than its factorization.

198651102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23960 (or 23953 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 198651102120 in words is "one hundred ninety-eight billion, six hundred fifty-one million, one hundred two thousand, one hundred twenty".