16550128 has 20 divisors (see below), whose sum is σ = 36646960. Its totient is φ = 7092864.

The previous prime is 16550119. The next prime is 16550153. The reversal of 16550128 is 82105561.

16550128 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 junction number, because it is equal to n+sod(n) for n = 16550096 and 16550105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73773 + ... + 73996.

It is an arithmetic number, because the mean of its divisors is an integer number (1832348).

Almost surely, 2^16550128 is an apocalyptic number.

It is an amenable number.

16550128 is an abundant number, since it is smaller than the sum of its proper divisors (20096832).

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

16550128 is a wasteful number, since it uses less digits than its factorization.

16550128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147784 (or 147778 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 16550128 is about 4068.1848532239. The cubic root of 16550128 is about 254.8397198589.

Adding to 16550128 its reverse (82105561), we get a palindrome (98655689).

The spelling of 16550128 in words is "sixteen million, five hundred fifty thousand, one hundred twenty-eight".