208025091000 has 1280 divisors, whose sum is σ = 815443200000. Its totient is φ = 49250073600.

The previous prime is 208025090983. The next prime is 208025091011. The reversal of 208025091000 is 190520802.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2633228961 + ... + 2633229039.

It is an arithmetic number, because the mean of its divisors is an integer number (637065000).

Almost surely, 2^208025091000 is an apocalyptic number.

208025091000 is a gapful number since it is divisible by the number (20) 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 208025091000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407721600000).

208025091000 is an abundant number, since it is smaller than the sum of its proper divisors (607418109000).

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

208025091000 is a wasteful number, since it uses less digits than its factorization.

208025091000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 208025091000 in words is "two hundred eight billion, twenty-five million, ninety-one thousand".