16809408495 has 128 divisors (see below), whose sum is σ = 34644879360. Its totient is φ = 7642368000.

The previous prime is 16809408491. The next prime is 16809408541. The reversal of 16809408495 is 59480490861.

16809408495 is a `hidden beast` number, since 1 + 68 + 0 + 94 + 0 + 8 + 495 = 666.

It is not a de Polignac number, because 16809408495 - 2² = 16809408491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16809408491) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7850125 + ... + 7852265.

It is an arithmetic number, because the mean of its divisors is an integer number (270663120).

Almost surely, 2^16809408495 is an apocalyptic number.

16809408495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16809408495 is an abundant number, since it is smaller than the sum of its proper divisors (17835470865).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16809408495 is a wasteful number, since it uses less digits than its factorization.

16809408495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 16809408495 in words is "sixteen billion, eight hundred nine million, four hundred eight thousand, four hundred ninety-five".