217252088216 has 16 divisors (see below), whose sum is σ = 411084801600. Its totient is φ = 107629474464.

The previous prime is 217252088173. The next prime is 217252088239. The reversal of 217252088216 is 612880252712.

217252088216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124570280 + ... + 124572023.

It is an arithmetic number, because the mean of its divisors is an integer number (25692800100).

Almost surely, 2^217252088216 is an apocalyptic number.

It is an amenable number.

217252088216 is a deficient number, since it is larger than the sum of its proper divisors (193832713384).

217252088216 is a wasteful number, since it uses less digits than its factorization.

217252088216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249142418 (or 249142414 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 217252088216 in words is "two hundred seventeen billion, two hundred fifty-two million, eighty-eight thousand, two hundred sixteen".