16509196229 has 4 divisors (see below), whose sum is σ = 16735349676. Its totient is φ = 16283042784.

The previous prime is 16509196219. The next prime is 16509196259. The reversal of 16509196229 is 92269190561.

16509196229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11691448129 + 4817748100 = 108127^2 + 69410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16509196229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16509196219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113076614 + ... + 113076759.

It is an arithmetic number, because the mean of its divisors is an integer number (4183837419).

Almost surely, 2^16509196229 is an apocalyptic number.

It is an amenable number.

16509196229 is a deficient number, since it is larger than the sum of its proper divisors (226153447).

16509196229 is an equidigital number, since it uses as much as digits as its factorization.

16509196229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226153446.

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 16509196229 in words is "sixteen billion, five hundred nine million, one hundred ninety-six thousand, two hundred twenty-nine".