16500443 has 2 divisors, whose sum is σ = 16500444. Its totient is φ = 16500442.

The previous prime is 16500427. The next prime is 16500457. The reversal of 16500443 is 34400561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16500443 - 2⁴ = 16500427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16500413) 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 as a sum of consecutive naturals, namely, 8250221 + 8250222.

It is an arithmetic number, because the mean of its divisors is an integer number (8250222).

Almost surely, 2^16500443 is an apocalyptic number.

16500443 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500443 is an equidigital number, since it uses as much as digits as its factorization.

16500443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 16500443 is about 4062.0737314825. The cubic root of 16500443 is about 254.5844468444.

The spelling of 16500443 in words is "sixteen million, five hundred thousand, four hundred forty-three".