216522084752 has 40 divisors (see below), whose sum is σ = 421718141496. Its totient is φ = 107692886016.

The previous prime is 216522084739. The next prime is 216522084761. The reversal of 216522084752 is 257480225612.

It can be written as a sum of positive squares in 4 ways, for example, as 7925272576 + 208596812176 = 89024^2 + 456724^2 .

It is a super-3 number, since 3×216522084752³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2676968 + ... + 2756664.

Almost surely, 2^216522084752 is an apocalyptic number.

It is an amenable number.

216522084752 is a deficient number, since it is larger than the sum of its proper divisors (205196056744).

216522084752 is a wasteful number, since it uses less digits than its factorization.

216522084752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80595 (or 80589 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 216522084752 in words is "two hundred sixteen billion, five hundred twenty-two million, eighty-four thousand, seven hundred fifty-two".