208998208896 has 128 divisors (see below), whose sum is σ = 598899160800. Its totient is φ = 64330825728.

The previous prime is 208998208883. The next prime is 208998209023. The reversal of 208998208896 is 698802899802.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 208998208896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43950 + ... + 648018.

Almost surely, 2^208998208896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208998208896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299449580400).

208998208896 is an abundant number, since it is smaller than the sum of its proper divisors (389900951904).

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

208998208896 is a wasteful number, since it uses less digits than its factorization.

208998208896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604156 (or 604144 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The spelling of 208998208896 in words is "two hundred eight billion, nine hundred ninety-eight million, two hundred eight thousand, eight hundred ninety-six".