16554474744671 has 2 divisors, whose sum is σ = 16554474744672. Its totient is φ = 16554474744670.

The previous prime is 16554474744653. The next prime is 16554474744719. The reversal of 16554474744671 is 17644747445561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16554474744671 - 2²² = 16554470550367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16554474744598 and 16554474744607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16554474144671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277237372335 + 8277237372336.

It is an arithmetic number, because the mean of its divisors is an integer number (8277237372336).

Almost surely, 2^{16554474744671} is an apocalyptic number.

16554474744671 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554474744671 is an equidigital number, since it uses as much as digits as its factorization.

16554474744671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 316108800, while the sum is 65.

The spelling of 16554474744671 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-four million, seven hundred forty-four thousand, six hundred seventy-one".