215610506255216 has 40 divisors (see below), whose sum is σ = 431381380003200. Its totient is φ = 104288865730560.

The previous prime is 215610506255201. The next prime is 215610506255233. The reversal of 215610506255216 is 612552605016512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79495301 + ... + 82162788.

It is an arithmetic number, because the mean of its divisors is an integer number (10784534500080).

Almost surely, 2^{215610506255216} is an apocalyptic number.

It is an amenable number.

215610506255216 is an abundant number, since it is smaller than the sum of its proper divisors (215770873747984).

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

215610506255216 is a wasteful number, since it uses less digits than its factorization.

215610506255216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161660817 (or 161660811 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 215610506255216 in words is "two hundred fifteen trillion, six hundred ten billion, five hundred six million, two hundred fifty-five thousand, two hundred sixteen".