216443800228 has 12 divisors (see below), whose sum is σ = 378798602112. Its totient is φ = 108215628200.

The previous prime is 216443800213. The next prime is 216443800241. The reversal of 216443800228 is 822008344612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489900 + ... + 1628707.

It is an arithmetic number, because the mean of its divisors is an integer number (31566550176).

Almost surely, 2^216443800228 is an apocalyptic number.

It is an amenable number.

216443800228 is a deficient number, since it is larger than the sum of its proper divisors (162354801884).

216443800228 is a wasteful number, since it uses less digits than its factorization.

216443800228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135962 (or 3135960 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 216443800228 in words is "two hundred sixteen billion, four hundred forty-three million, eight hundred thousand, two hundred twenty-eight".