16453180109 has 2 divisors, whose sum is σ = 16453180110. Its totient is φ = 16453180108.

The previous prime is 16453180097. The next prime is 16453180129. The reversal of 16453180109 is 90108135461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16289416900 + 163763209 = 127630^2 + 12797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16453180109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16453180129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226590054 + 8226590055.

It is an arithmetic number, because the mean of its divisors is an integer number (8226590055).

Almost surely, 2^16453180109 is an apocalyptic number.

It is an amenable number.

16453180109 is a deficient number, since it is larger than the sum of its proper divisors (1).

16453180109 is an equidigital number, since it uses as much as digits as its factorization.

16453180109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 16453180109 in words is "sixteen billion, four hundred fifty-three million, one hundred eighty thousand, one hundred nine".