16131808469 has 12 divisors (see below), whose sum is σ = 19753236000. Its totient is φ = 13099512888.

The previous prime is 16131808457. The next prime is 16131808477. The reversal of 16131808469 is 96480813161.

It is not a de Polignac number, because 16131808469 - 2⁸ = 16131808213 is a prime.

It is a super-2 number, since 2×16131808469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131808409) 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 in 11 ways as a sum of consecutive naturals, for example, 8662769 + ... + 8664630.

It is an arithmetic number, because the mean of its divisors is an integer number (1646103000).

Almost surely, 2^16131808469 is an apocalyptic number.

16131808469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16131808469 is a deficient number, since it is larger than the sum of its proper divisors (3621427531).

16131808469 is a wasteful number, since it uses less digits than its factorization.

16131808469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17327432 (or 17327425 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 16131808469 in words is "sixteen billion, one hundred thirty-one million, eight hundred eight thousand, four hundred sixty-nine".