16723816922987 has 2 divisors, whose sum is σ = 16723816922988. Its totient is φ = 16723816922986.

The previous prime is 16723816922951. The next prime is 16723816923097. The reversal of 16723816922987 is 78922961832761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16723816922987 - 2¹⁰ = 16723816921963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16723816922987.

It is not a weakly prime, because it can be changed into another prime (16723816922947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361908461493 + 8361908461494.

It is an arithmetic number, because the mean of its divisors is an integer number (8361908461494).

Almost surely, 2^{16723816922987} is an apocalyptic number.

16723816922987 is a deficient number, since it is larger than the sum of its proper divisors (1).

16723816922987 is an equidigital number, since it uses as much as digits as its factorization.

16723816922987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 71.

The spelling of 16723816922987 in words is "sixteen trillion, seven hundred twenty-three billion, eight hundred sixteen million, nine hundred twenty-two thousand, nine hundred eighty-seven".