208653161288 has 64 divisors (see below), whose sum is σ = 460614470400. Its totient is φ = 87357473280.

The previous prime is 208653161279. The next prime is 208653161323. The reversal of 208653161288 is 882161356802.

It is a super-2 number, since 2×208653161288² (a number of 23 digits) contains 22 as substring.

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, 332708 + ... + 726636.

It is an arithmetic number, because the mean of its divisors is an integer number (7197101100).

Almost surely, 2^208653161288 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 208653161288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230307235200).

208653161288 is an abundant number, since it is smaller than the sum of its proper divisors (251961309112).

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

208653161288 is a wasteful number, since it uses less digits than its factorization.

208653161288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394422 (or 394418 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 208653161288 in words is "two hundred eight billion, six hundred fifty-three million, one hundred sixty-one thousand, two hundred eighty-eight".