216680532 has 24 divisors (see below), whose sum is σ = 507321696. Its totient is φ = 71979168.

The previous prime is 216680501. The next prime is 216680533. The reversal of 216680532 is 235086612.

216680532 is digitally balanced in base 3, 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 = 216680493 and 216680502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216680533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27298 + ... + 34329.

It is an arithmetic number, because the mean of its divisors is an integer number (21138404).

Almost surely, 2^216680532 is an apocalyptic number.

It is an amenable number.

216680532 is an abundant number, since it is smaller than the sum of its proper divisors (290641164).

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

216680532 is a wasteful number, since it uses less digits than its factorization.

216680532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61927 (or 61925 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 216680532 is about 14720.0724183001. The cubic root of 216680532 is about 600.6294616214.

The spelling of 216680532 in words is "two hundred sixteen million, six hundred eighty thousand, five hundred thirty-two".