16105530 has 64 divisors (see below), whose sum is σ = 44494848. Its totient is φ = 3654720.

The previous prime is 16105517. The next prime is 16105549. The reversal of 16105530 is 3550161.

It is a happy number.

16105530 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 (21).

It is a junction number, because it is equal to n+sod(n) for n = 16105497 and 16105506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56769 + ... + 57051.

It is an arithmetic number, because the mean of its divisors is an integer number (695232).

Almost surely, 2^16105530 is an apocalyptic number.

16105530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16105530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22247424).

16105530 is an abundant number, since it is smaller than the sum of its proper divisors (28389318).

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

16105530 is a wasteful number, since it uses less digits than its factorization.

16105530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 16105530 is about 4013.1695703023. The cubic root of 16105530 is about 252.5369942202.

Adding to 16105530 its reverse (3550161), we get a palindrome (19655691).

It can be divided in two parts, 1610 and 5530, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 16105530 in words is "sixteen million, one hundred five thousand, five hundred thirty".