216886771910208 has 224 divisors, whose sum is σ = 605600682624000. Its totient is φ = 68314645555200.

The previous prime is 216886771910173. The next prime is 216886771910267. The reversal of 216886771910208 is 802019177688612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12076764333 + ... + 12076782291.

It is an arithmetic number, because the mean of its divisors is an integer number (2703574476000).

Almost surely, 2^{216886771910208} 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 216886771910208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302800341312000).

216886771910208 is an abundant number, since it is smaller than the sum of its proper divisors (388713910713792).

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

216886771910208 is a wasteful number, since it uses less digits than its factorization.

216886771910208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26313 (or 26303 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 66.

The spelling of 216886771910208 in words is "two hundred sixteen trillion, eight hundred eighty-six billion, seven hundred seventy-one million, nine hundred ten thousand, two hundred eight".