16323472673 has 2 divisors, whose sum is σ = 16323472674. Its totient is φ = 16323472672.

The previous prime is 16323472601. The next prime is 16323472691. The reversal of 16323472673 is 37627432361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9244437904 + 7079034769 = 96148^2 + 84137^2 .

It is an emirp because it is prime and its reverse (37627432361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16323472673 - 2¹⁶ = 16323407137 is a prime.

It is not a weakly prime, because it can be changed into another prime (16323472073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161736336 + 8161736337.

It is an arithmetic number, because the mean of its divisors is an integer number (8161736337).

Almost surely, 2^16323472673 is an apocalyptic number.

It is an amenable number.

16323472673 is a deficient number, since it is larger than the sum of its proper divisors (1).

16323472673 is an equidigital number, since it uses as much as digits as its factorization.

16323472673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 44.

The spelling of 16323472673 in words is "sixteen billion, three hundred twenty-three million, four hundred seventy-two thousand, six hundred seventy-three".