16434084991 has 2 divisors, whose sum is σ = 16434084992. Its totient is φ = 16434084990.

The previous prime is 16434084929. The next prime is 16434085009. The reversal of 16434084991 is 19948043461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16434084991 - 2⁹ = 16434084479 is a prime.

It is a super-2 number, since 2×16434084991² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16434081991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8217042495 + 8217042496.

It is an arithmetic number, because the mean of its divisors is an integer number (8217042496).

Almost surely, 2^16434084991 is an apocalyptic number.

16434084991 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434084991 is an equidigital number, since it uses as much as digits as its factorization.

16434084991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 16434084991 in words is "sixteen billion, four hundred thirty-four million, eighty-four thousand, nine hundred ninety-one".