16554474744653 has 2 divisors, whose sum is σ = 16554474744654. Its totient is φ = 16554474744652.

The previous prime is 16554474744593. The next prime is 16554474744671. The reversal of 16554474744653 is 35644747445561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9900355269289 + 6654119475364 = 3146483^2 + 2579558^2 .

It is a cyclic number.

It is not a de Polignac number, because 16554474744653 - 2¹⁴ = 16554474728269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16554474744653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16554474740653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277237372326 + 8277237372327.

It is an arithmetic number, because the mean of its divisors is an integer number (8277237372327).

Almost surely, 2^{16554474744653} is an apocalyptic number.

It is an amenable number.

16554474744653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554474744653 is an equidigital number, since it uses as much as digits as its factorization.

16554474744653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376000, while the sum is 65.

The spelling of 16554474744653 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-four million, seven hundred forty-four thousand, six hundred fifty-three".