16390045791773 has 2 divisors, whose sum is σ = 16390045791774. Its totient is φ = 16390045791772.

The previous prime is 16390045791697. The next prime is 16390045791811. The reversal of 16390045791773 is 37719754009361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9351620873764 + 7038424918009 = 3058042^2 + 2653003^2 .

It is a cyclic number.

It is not a de Polignac number, because 16390045791773 - 2²⁰ = 16390044743197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16390045791073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195022895886 + 8195022895887.

It is an arithmetic number, because the mean of its divisors is an integer number (8195022895887).

Almost surely, 2^{16390045791773} is an apocalyptic number.

It is an amenable number.

16390045791773 is a deficient number, since it is larger than the sum of its proper divisors (1).

16390045791773 is an equidigital number, since it uses as much as digits as its factorization.

16390045791773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 16390045791773 in words is "sixteen trillion, three hundred ninety billion, forty-five million, seven hundred ninety-one thousand, seven hundred seventy-three".