16659129069 has 24 divisors (see below), whose sum is σ = 26263411200. Its totient is φ = 10091571840.

The previous prime is 16659129043. The next prime is 16659129077. The reversal of 16659129069 is 96092195661.

It is not a de Polignac number, because 16659129069 - 2⁵ = 16659129037 is a prime.

It is a super-2 number, since 2×16659129069² (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 (16659129089) 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 23 ways as a sum of consecutive naturals, for example, 171252 + ... + 250290.

It is an arithmetic number, because the mean of its divisors is an integer number (1094308800).

Almost surely, 2^16659129069 is an apocalyptic number.

It is an amenable number.

16659129069 is a deficient number, since it is larger than the sum of its proper divisors (9604282131).

16659129069 is a wasteful number, since it uses less digits than its factorization.

16659129069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81185 (or 81182 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 16659129069 in words is "sixteen billion, six hundred fifty-nine million, one hundred twenty-nine thousand, sixty-nine".