16216033 has 4 divisors (see below), whose sum is σ = 16611588. Its totient is φ = 15820480.

The previous prime is 16216019. The next prime is 16216037. The reversal of 16216033 is 33061261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33061261 = 3463 ⋅9547.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 13601344 = 1617^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 16216033 - 2¹⁷ = 16084961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16215995 and 16216013.

It is not an unprimeable number, because it can be changed into a prime (16216037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197716 + ... + 197797.

It is an arithmetic number, because the mean of its divisors is an integer number (4152897).

Almost surely, 2^16216033 is an apocalyptic number.

It is an amenable number.

16216033 is a deficient number, since it is larger than the sum of its proper divisors (395555).

16216033 is an equidigital number, since it uses as much as digits as its factorization.

16216033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395554.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16216033 is about 4026.9135823854. The cubic root of 16216033 is about 253.1132458699.

Adding to 16216033 its reverse (33061261), we get a palindrome (49277294).

The spelling of 16216033 in words is "sixteen million, two hundred sixteen thousand, thirty-three".