16653313 has 2 divisors, whose sum is σ = 16653314. Its totient is φ = 16653312.

The previous prime is 16653269. The next prime is 16653361. The reversal of 16653313 is 31335661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14197824 + 2455489 = 3768^2 + 1567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16653313 is a prime.

It is not a weakly prime, because it can be changed into another prime (16650313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326656 + 8326657.

It is an arithmetic number, because the mean of its divisors is an integer number (8326657).

Almost surely, 2^16653313 is an apocalyptic number.

It is an amenable number.

16653313 is a deficient number, since it is larger than the sum of its proper divisors (1).

16653313 is an equidigital number, since it uses as much as digits as its factorization.

16653313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 16653313 is about 4080.8470934354. The cubic root of 16653313 is about 255.3682389651.

Adding to 16653313 its reverse (31335661), we get a palindrome (47988974).

The spelling of 16653313 in words is "sixteen million, six hundred fifty-three thousand, three hundred thirteen".