198364446720 has 960 divisors, whose sum is σ = 797228974080. Its totient is φ = 46360166400.

The previous prime is 198364446701. The next prime is 198364446743. The reversal of 198364446720 is 27644463891.

198364446720 is a `hidden beast` number, since 1 + 98 + 36 + 44 + 467 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 754237309 + ... + 754237571.

It is an arithmetic number, because the mean of its divisors is an integer number (830446848).

Almost surely, 2^198364446720 is an apocalyptic number.

198364446720 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 198364446720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398614487040).

198364446720 is an abundant number, since it is smaller than the sum of its proper divisors (598864527360).

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

198364446720 is a wasteful number, since it uses less digits than its factorization.

198364446720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 198364446720 in words is "one hundred ninety-eight billion, three hundred sixty-four million, four hundred forty-six thousand, seven hundred twenty".