16551136 has 48 divisors (see below), whose sum is σ = 38265696. Its totient is φ = 6898176.

The previous prime is 16551133. The next prime is 16551151. The reversal of 16551136 is 63115561.

16551136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551131) 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, 7290 + ... + 9286.

It is an arithmetic number, because the mean of its divisors is an integer number (797202).

Almost surely, 2^16551136 is an apocalyptic number.

16551136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16551136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19132848).

16551136 is an abundant number, since it is smaller than the sum of its proper divisors (21714560).

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

16551136 is a wasteful number, since it uses less digits than its factorization.

16551136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2043 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 16551136 is about 4068.3087395133. The cubic root of 16551136 is about 254.8448934991.

Adding to 16551136 its reverse (63115561), we get a palindrome (79666697).

The spelling of 16551136 in words is "sixteen million, five hundred fifty-one thousand, one hundred thirty-six".