216225919206 has 128 divisors (see below), whose sum is σ = 579150259200. Its totient is φ = 58987399680.

The previous prime is 216225919199. The next prime is 216225919219. The reversal of 216225919206 is 602919522612.

216225919206 is a `hidden beast` number, since 2 + 1 + 622 + 5 + 9 + 19 + 2 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 233241 + ... + 697748.

It is an arithmetic number, because the mean of its divisors is an integer number (4524611400).

Almost surely, 2^216225919206 is an apocalyptic number.

216225919206 is an abundant number, since it is smaller than the sum of its proper divisors (362924339994).

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

216225919206 is a wasteful number, since it uses less digits than its factorization.

216225919206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931051 (or 931045 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 216225919206 in words is "two hundred sixteen billion, two hundred twenty-five million, nine hundred nineteen thousand, two hundred six".