216056632852180 has 12 divisors (see below), whose sum is σ = 453718928989620. Its totient is φ = 86422653140864.

The previous prime is 216056632852103. The next prime is 216056632852187. The reversal of 216056632852180 is 81258236650612.

It can be written as a sum of positive squares in 2 ways, for example, as 108062594739856 + 107994038112324 = 10395316^2 + 10392018^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216056632852187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5401415821285 + ... + 5401415821324.

It is an arithmetic number, because the mean of its divisors is an integer number (37809910749135).

Almost surely, 2^{216056632852180} is an apocalyptic number.

216056632852180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216056632852180 is an abundant number, since it is smaller than the sum of its proper divisors (237662296137440).

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

216056632852180 is a wasteful number, since it uses less digits than its factorization.

216056632852180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802831642618 (or 10802831642616 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 216056632852180 in words is "two hundred sixteen trillion, fifty-six billion, six hundred thirty-two million, eight hundred fifty-two thousand, one hundred eighty".