16444173590947 has 2 divisors, whose sum is σ = 16444173590948. Its totient is φ = 16444173590946.

The previous prime is 16444173590917. The next prime is 16444173590953. The reversal of 16444173590947 is 74909537144461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16444173590947 - 2¹⁵ = 16444173558179 is a prime.

It is not a weakly prime, because it can be changed into another prime (16444173590917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222086795473 + 8222086795474.

It is an arithmetic number, because the mean of its divisors is an integer number (8222086795474).

Almost surely, 2^{16444173590947} is an apocalyptic number.

16444173590947 is a deficient number, since it is larger than the sum of its proper divisors (1).

16444173590947 is an equidigital number, since it uses as much as digits as its factorization.

16444173590947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 16444173590947 in words is "sixteen trillion, four hundred forty-four billion, one hundred seventy-three million, five hundred ninety thousand, nine hundred forty-seven".