16556132 has 12 divisors (see below), whose sum is σ = 29448636. Its totient is φ = 8142240.

The previous prime is 16556123. The next prime is 16556149. The reversal of 16556132 is 23165561.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 10719076 = 2416^2 + 3274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16556095 and 16556104.

It is an unprimeable number.

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, 33683 + ... + 34170.

It is an arithmetic number, because the mean of its divisors is an integer number (2454053).

Almost surely, 2^16556132 is an apocalyptic number.

It is an amenable number.

16556132 is a deficient number, since it is larger than the sum of its proper divisors (12892504).

16556132 is a wasteful number, since it uses less digits than its factorization.

16556132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67918 (or 67916 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 16556132 is about 4068.9227075480. The cubic root of 16556132 is about 254.8705327665.

The spelling of 16556132 in words is "sixteen million, five hundred fifty-six thousand, one hundred thirty-two".