216796396996 has 27 divisors (see below), whose sum is σ = 400445417421. Its totient is φ = 102684649104.

The previous prime is 216796396937. The next prime is 216796397009. The reversal of 216796396996 is 699693697612.

The square root of 216796396996 is 465614.

It is a perfect power (a square), and thus also a powerful number.

216796396996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 105683508100 + 111112888896 = 325090^2 + 333336^2 .

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 17687206 + ... + 17699458.

Almost surely, 2^216796396996 is an apocalyptic number.

216796396996 is the 465614-th square number.

It is an amenable number.

216796396996 is a deficient number, since it is larger than the sum of its proper divisors (183649020425).

216796396996 is an frugal number, since it uses more digits than its factorization.

216796396996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24548 (or 12274 counting only the distinct ones).

The product of its digits is 357128352, while the sum is 73.

The spelling of 216796396996 in words is "two hundred sixteen billion, seven hundred ninety-six million, three hundred ninety-six thousand, nine hundred ninety-six".