216158732 has 12 divisors (see below), whose sum is σ = 379007496. Its totient is φ = 107870880.

The previous prime is 216158731. The next prime is 216158743. The reversal of 216158732 is 237851612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216158692 and 216158701.

It is not an unprimeable number, because it can be changed into a prime (216158731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49778 + ... + 53945.

It is an arithmetic number, because the mean of its divisors is an integer number (31583958).

Almost surely, 2^216158732 is an apocalyptic number.

It is an amenable number.

216158732 is a deficient number, since it is larger than the sum of its proper divisors (162848764).

216158732 is a wasteful number, since it uses less digits than its factorization.

216158732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104248 (or 104246 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 216158732 is about 14702.3376372603. The cubic root of 216158732 is about 600.1469380865.

The spelling of 216158732 in words is "two hundred sixteen million, one hundred fifty-eight thousand, seven hundred thirty-two".