198243472545216 has 1120 divisors, whose sum is σ = 746260859520000. Its totient is φ = 51809290315776.

The previous prime is 198243472545113. The next prime is 198243472545227. The reversal of 198243472545216 is 612545274342891.

198243472545216 is a `hidden beast` number, since 1 + 9 + 8 + 2 + 4 + 3 + 4 + 72 + 545 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 979638541 + ... + 979840883.

Almost surely, 2^{198243472545216} is an apocalyptic number.

198243472545216 is a gapful number since it is divisible by the number (16) 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 198243472545216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373130429760000).

198243472545216 is an abundant number, since it is smaller than the sum of its proper divisors (548017386974784).

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

198243472545216 is a wasteful number, since it uses less digits than its factorization.

198243472545216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202436 (or 202403 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 198243472545216 in words is "one hundred ninety-eight trillion, two hundred forty-three billion, four hundred seventy-two million, five hundred forty-five thousand, two hundred sixteen".