215552211510232 has 16 divisors (see below), whose sum is σ = 404790912030600. Its totient is φ = 107607968302080.

The previous prime is 215552211510179. The next prime is 215552211510263. The reversal of 215552211510232 is 232015112255512.

It is a happy number.

215552211510232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215552211510191 and 215552211510200.

It is a congruent number.

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, 21017176182 + ... + 21017186437.

Almost surely, 2^{215552211510232} is an apocalyptic number.

It is an amenable number.

215552211510232 is a deficient number, since it is larger than the sum of its proper divisors (189238700520368).

215552211510232 is a wasteful number, since it uses less digits than its factorization.

215552211510232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42034363266 (or 42034363262 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 37.

Adding to 215552211510232 its reverse (232015112255512), we get a palindrome (447567323765744).

The spelling of 215552211510232 in words is "two hundred fifteen trillion, five hundred fifty-two billion, two hundred eleven million, five hundred ten thousand, two hundred thirty-two".