16553416 has 16 divisors (see below), whose sum is σ = 33859440. Its totient is φ = 7524240.

The previous prime is 16553413. The next prime is 16553443. The reversal of 16553416 is 61435561.

It is not an unprimeable number, because it can be changed into a prime (16553413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93966 + ... + 94141.

It is an arithmetic number, because the mean of its divisors is an integer number (2116215).

Almost surely, 2^16553416 is an apocalyptic number.

It is an amenable number.

16553416 is an abundant number, since it is smaller than the sum of its proper divisors (17306024).

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

16553416 is a wasteful number, since it uses less digits than its factorization.

16553416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188124 (or 188120 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 16553416 is about 4068.5889445851. The cubic root of 16553416 is about 254.8565950057.

Adding to 16553416 its reverse (61435561), we get a palindrome (77988977).

The spelling of 16553416 in words is "sixteen million, five hundred fifty-three thousand, four hundred sixteen".