198902366208 has 960 divisors, whose sum is σ = 746311677440. Its totient is φ = 51597803520.

The previous prime is 198902366197. The next prime is 198902366227. The reversal of 198902366208 is 802663209891.

198902366208 is a `hidden beast` number, since 1 + 9 + 8 + 9 + 0 + 2 + 3 + 6 + 620 + 8 = 666.

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, 3260694498 + ... + 3260694558.

Almost surely, 2^198902366208 is an apocalyptic number.

198902366208 is a gapful number since it is divisible by the number (18) 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 198902366208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373155838720).

198902366208 is an abundant number, since it is smaller than the sum of its proper divisors (547409311232).

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

198902366208 is an frugal number, since it uses more digits than its factorization.

198902366208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 198902366208 in words is "one hundred ninety-eight billion, nine hundred two million, three hundred sixty-six thousand, two hundred eight".