198201600000 has 1152 divisors, whose sum is σ = 778000204800. Its totient is φ = 49766400000.

The previous prime is 198201599989. The next prime is 198201600017. The reversal of 198201600000 is 6102891.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5356799982 + ... + 5356800018.

It is an arithmetic number, because the mean of its divisors is an integer number (675347400).

Almost surely, 2^198201600000 is an apocalyptic number.

198201600000 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 198201600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389000102400).

198201600000 is an abundant number, since it is smaller than the sum of its proper divisors (579798604800).

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

198201600000 is an frugal number, since it uses more digits than its factorization.

198201600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 198201600000 its reverse (6102891), we get a palindrome (198207702891).

The spelling of 198201600000 in words is "one hundred ninety-eight billion, two hundred one million, six hundred thousand".