16673120342777 has 4 divisors (see below), whose sum is σ = 16673130408036. Its totient is φ = 16673110277520.

The previous prime is 16673120342771. The next prime is 16673120342789. The reversal of 16673120342777 is 77724302137661.

16673120342777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5536510174441 + 11136610168336 = 2352979^2 + 3337156^2 .

It is a cyclic number.

It is not a de Polignac number, because 16673120342777 - 2¹² = 16673120338681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16673120342771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896398 + ... + 6078039.

It is an arithmetic number, because the mean of its divisors is an integer number (4168282602009).

Almost surely, 2^{16673120342777} is an apocalyptic number.

It is an amenable number.

16673120342777 is a deficient number, since it is larger than the sum of its proper divisors (10065259).

16673120342777 is an equidigital number, since it uses as much as digits as its factorization.

16673120342777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065258.

The product of its (nonzero) digits is 12446784, while the sum is 56.

The spelling of 16673120342777 in words is "sixteen trillion, six hundred seventy-three billion, one hundred twenty million, three hundred forty-two thousand, seven hundred seventy-seven".