16673374129 has 2 divisors, whose sum is σ = 16673374130. Its totient is φ = 16673374128.

The previous prime is 16673374117. The next prime is 16673374169. The reversal of 16673374129 is 92147337661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12819447729 + 3853926400 = 113223^2 + 62080^2 .

It is a cyclic number.

It is not a de Polignac number, because 16673374129 - 2¹⁷ = 16673243057 is a prime.

It is not a weakly prime, because it can be changed into another prime (16673374169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8336687064 + 8336687065.

It is an arithmetic number, because the mean of its divisors is an integer number (8336687065).

Almost surely, 2^16673374129 is an apocalyptic number.

It is an amenable number.

16673374129 is a deficient number, since it is larger than the sum of its proper divisors (1).

16673374129 is an equidigital number, since it uses as much as digits as its factorization.

16673374129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The spelling of 16673374129 in words is "sixteen billion, six hundred seventy-three million, three hundred seventy-four thousand, one hundred twenty-nine".