216017917212304 has 45 divisors (see below), whose sum is σ = 433468030427913. Its totient is φ = 104283688694976.

The previous prime is 216017917212281. The next prime is 216017917212337. The reversal of 216017917212304 is 403212719710612.

The square root of 216017917212304 is 14697548.

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

216017917212304 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., 113274555874704 + 102743361337600 = 10643052^2 + 10136240^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1704852217 + ... + 1704978919.

Almost surely, 2^{216017917212304} is an apocalyptic number.

216017917212304 is the 14697548-th square number.

It is an amenable number.

216017917212304 is an abundant number, since it is smaller than the sum of its proper divisors (217450113215609).

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

216017917212304 is an frugal number, since it uses more digits than its factorization.

216017917212304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253472 (or 126734 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 216017917212304 in words is "two hundred sixteen trillion, seventeen billion, nine hundred seventeen million, two hundred twelve thousand, three hundred four".