198884556288 has 480 divisors, whose sum is σ = 660372590592. Its totient is φ = 57061785600.

The previous prime is 198884556287. The next prime is 198884556289. The reversal of 198884556288 is 882655488891.

198884556288 is a `hidden beast` number, since 1 + 98 + 8 + 8 + 455 + 6 + 2 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (198884556287) and next prime (198884556289).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198884556281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73851070 + ... + 73853762.

Almost surely, 2^198884556288 is an apocalyptic number.

198884556288 is a gapful number since it is divisible by the number (18) 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 198884556288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330186295296).

198884556288 is an abundant number, since it is smaller than the sum of its proper divisors (461488034304).

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

198884556288 is a wasteful number, since it uses less digits than its factorization.

198884556288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806 (or 2787 counting only the distinct ones).

The product of its digits is 353894400, while the sum is 72.

The spelling of 198884556288 in words is "one hundred ninety-eight billion, eight hundred eighty-four million, five hundred fifty-six thousand, two hundred eighty-eight".