198844223760 has 600 divisors, whose sum is σ = 854691456960. Its totient is φ = 41952328704.

The previous prime is 198844223749. The next prime is 198844223761. The reversal of 198844223760 is 67322448891.

198844223760 is a `hidden beast` number, since 198 + 8 + 442 + 2 + 3 + 7 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 198844223697 and 198844223706.

It is not an unprimeable number, because it can be changed into a prime (198844223761) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7652871 + ... + 7678809.

Almost surely, 2^198844223760 is an apocalyptic number.

198844223760 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 198844223760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427345728480).

198844223760 is an abundant number, since it is smaller than the sum of its proper divisors (655847233200).

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

198844223760 is a wasteful number, since it uses less digits than its factorization.

198844223760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25997 (or 25969 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 198844223760 in words is "one hundred ninety-eight billion, eight hundred forty-four million, two hundred twenty-three thousand, seven hundred sixty".