16408956911 has 2 divisors, whose sum is σ = 16408956912. Its totient is φ = 16408956910.

The previous prime is 16408956887. The next prime is 16408956913. The reversal of 16408956911 is 11965980461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16408956911 - 2⁶ = 16408956847 is a prime.

Together with 16408956913, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16408956911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16408956913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204478455 + 8204478456.

It is an arithmetic number, because the mean of its divisors is an integer number (8204478456).

Almost surely, 2^16408956911 is an apocalyptic number.

16408956911 is a deficient number, since it is larger than the sum of its proper divisors (1).

16408956911 is an equidigital number, since it uses as much as digits as its factorization.

16408956911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 16408956911 in words is "sixteen billion, four hundred eight million, nine hundred fifty-six thousand, nine hundred eleven".