16671216242453 has 2 divisors, whose sum is σ = 16671216242454. Its totient is φ = 16671216242452.

The previous prime is 16671216242353. The next prime is 16671216242477. The reversal of 16671216242453 is 35424261217661.

16671216242453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12321518080804 + 4349698161649 = 3510202^2 + 2085593^2 .

It is a cyclic number.

It is not a de Polignac number, because 16671216242453 - 2¹⁰ = 16671216241429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16671216242053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8335608121226 + 8335608121227.

It is an arithmetic number, because the mean of its divisors is an integer number (8335608121227).

Almost surely, 2^{16671216242453} is an apocalyptic number.

It is an amenable number.

16671216242453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16671216242453 is an equidigital number, since it uses as much as digits as its factorization.

16671216242453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 16671216242453 in words is "sixteen trillion, six hundred seventy-one billion, two hundred sixteen million, two hundred forty-two thousand, four hundred fifty-three".