16598016 has 66 divisors (see below), whose sum is σ = 47953022. Its totient is φ = 5529600.

The previous prime is 16597991. The next prime is 16598017. The reversal of 16598016 is 61089561.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 5308416 = 3360^2 + 2304^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16598017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8316 + ... + 10116.

Almost surely, 2^16598016 is an apocalyptic number.

16598016 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 16598016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23976511).

16598016 is an abundant number, since it is smaller than the sum of its proper divisors (31355006).

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

16598016 is a wasteful number, since it uses less digits than its factorization.

16598016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 16598016 is about 4074.0662733932. The cubic root of 16598016 is about 255.0852771301.

The spelling of 16598016 in words is "sixteen million, five hundred ninety-eight thousand, sixteen".