16662725458363 has 2 divisors, whose sum is σ = 16662725458364. Its totient is φ = 16662725458362.

The previous prime is 16662725458361. The next prime is 16662725458387. The reversal of 16662725458363 is 36385452726661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16662725458363 - 2¹ = 16662725458361 is a prime.

Together with 16662725458361, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16662725458295 and 16662725458304.

It is not a weakly prime, because it can be changed into another prime (16662725458361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331362729181 + 8331362729182.

It is an arithmetic number, because the mean of its divisors is an integer number (8331362729182).

Almost surely, 2^{16662725458363} is an apocalyptic number.

16662725458363 is a deficient number, since it is larger than the sum of its proper divisors (1).

16662725458363 is an equidigital number, since it uses as much as digits as its factorization.

16662725458363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 64.

The spelling of 16662725458363 in words is "sixteen trillion, six hundred sixty-two billion, seven hundred twenty-five million, four hundred fifty-eight thousand, three hundred sixty-three".