16233504409 has 2 divisors, whose sum is σ = 16233504410. Its totient is φ = 16233504408.

The previous prime is 16233504389. The next prime is 16233504473. The reversal of 16233504409 is 90440533261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16147293184 + 86211225 = 127072^2 + 9285^2 .

It is a cyclic number.

It is not a de Polignac number, because 16233504409 - 2¹¹ = 16233502361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16233508409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8116752204 + 8116752205.

It is an arithmetic number, because the mean of its divisors is an integer number (8116752205).

Almost surely, 2^16233504409 is an apocalyptic number.

It is an amenable number.

16233504409 is a deficient number, since it is larger than the sum of its proper divisors (1).

16233504409 is an equidigital number, since it uses as much as digits as its factorization.

16233504409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 16233504409 in words is "sixteen billion, two hundred thirty-three million, five hundred four thousand, four hundred nine".