16683201449 has 2 divisors, whose sum is σ = 16683201450. Its totient is φ = 16683201448.

The previous prime is 16683201443. The next prime is 16683201467. The reversal of 16683201449 is 94410238661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9417343849 + 7265857600 = 97043^2 + 85240^2 .

It is a cyclic number.

It is not a de Polignac number, because 16683201449 - 2⁴ = 16683201433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (16683201443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8341600724 + 8341600725.

It is an arithmetic number, because the mean of its divisors is an integer number (8341600725).

Almost surely, 2^16683201449 is an apocalyptic number.

It is an amenable number.

16683201449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16683201449 is an equidigital number, since it uses as much as digits as its factorization.

16683201449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 16683201449 in words is "sixteen billion, six hundred eighty-three million, two hundred one thousand, four hundred forty-nine".