16945455004447 has 2 divisors, whose sum is σ = 16945455004448. Its totient is φ = 16945455004446.

The previous prime is 16945455004403. The next prime is 16945455004469. The reversal of 16945455004447 is 74440055454961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16945455004447 - 2¹⁹ = 16945454480159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16945455004391 and 16945455004400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16945455004747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472727502223 + 8472727502224.

It is an arithmetic number, because the mean of its divisors is an integer number (8472727502224).

Almost surely, 2^{16945455004447} is an apocalyptic number.

16945455004447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16945455004447 is an equidigital number, since it uses as much as digits as its factorization.

16945455004447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384000, while the sum is 58.

The spelling of 16945455004447 in words is "sixteen trillion, nine hundred forty-five billion, four hundred fifty-five million, four thousand, four hundred forty-seven".