16520332 has 12 divisors (see below), whose sum is σ = 28982520. Its totient is φ = 8239616.

The previous prime is 16520327. The next prime is 16520333. The reversal of 16520332 is 23302561.

It is not an unprimeable number, because it can be changed into a prime (16520333) 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, 3253 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (2415210).

Almost surely, 2^16520332 is an apocalyptic number.

It is an amenable number.

16520332 is a deficient number, since it is larger than the sum of its proper divisors (12462188).

16520332 is a wasteful number, since it uses less digits than its factorization.

16520332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280 (or 10278 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 16520332 is about 4064.5211280051. The cubic root of 16520332 is about 254.6866945437.

Adding to 16520332 its reverse (23302561), we get a palindrome (39822893).

The spelling of 16520332 in words is "sixteen million, five hundred twenty thousand, three hundred thirty-two".