198216926325600 has 1296 divisors, whose sum is σ = 835188044950224. Its totient is φ = 40472209612800.

The previous prime is 198216926325547. The next prime is 198216926325619. The reversal of 198216926325600 is 6523629612891.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1469109342 + ... + 1469244258.

It is an arithmetic number, because the mean of its divisors is an integer number (644435219869).

Almost surely, 2^{198216926325600} is an apocalyptic number.

198216926325600 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 198216926325600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417594022475112).

198216926325600 is an abundant number, since it is smaller than the sum of its proper divisors (636971118624624).

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

198216926325600 is a wasteful number, since it uses less digits than its factorization.

198216926325600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135029 (or 134978 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 198216926325600 in words is "one hundred ninety-eight trillion, two hundred sixteen billion, nine hundred twenty-six million, three hundred twenty-five thousand, six hundred".