16409609959 has 2 divisors, whose sum is σ = 16409609960. Its totient is φ = 16409609958.

The previous prime is 16409609947. The next prime is 16409610017. The reversal of 16409609959 is 95990690461.

It is an a-pointer prime, because the next prime (16409610017) can be obtained adding 16409609959 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16409609959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16409609059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204804979 + 8204804980.

It is an arithmetic number, because the mean of its divisors is an integer number (8204804980).

Almost surely, 2^16409609959 is an apocalyptic number.

16409609959 is a deficient number, since it is larger than the sum of its proper divisors (1).

16409609959 is an equidigital number, since it uses as much as digits as its factorization.

16409609959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 16409609959 in words is "sixteen billion, four hundred nine million, six hundred nine thousand, nine hundred fifty-nine".