16616060602447 has 2 divisors, whose sum is σ = 16616060602448. Its totient is φ = 16616060602446.

The previous prime is 16616060602423. The next prime is 16616060602481. The reversal of 16616060602447 is 74420606061661.

It is a weak prime.

It is an emirp because it is prime and its reverse (74420606061661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16616060602447 - 2³¹ = 16613913118799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16616060602447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16616060602417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8308030301223 + 8308030301224.

It is an arithmetic number, because the mean of its divisors is an integer number (8308030301224).

Almost surely, 2^{16616060602447} is an apocalyptic number.

16616060602447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16616060602447 is an equidigital number, since it uses as much as digits as its factorization.

16616060602447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 16616060602447 in words is "sixteen trillion, six hundred sixteen billion, sixty million, six hundred two thousand, four hundred forty-seven".