12169498866 has 16 divisors (see below), whose sum is σ = 27815997504. Its totient is φ = 3476999664.

The previous prime is 12169498819. The next prime is 12169498867. The reversal of 12169498866 is 66889496121.

It is not an unprimeable number, because it can be changed into a prime (12169498867) 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 7 ways as a sum of consecutive naturals, for example, 144874945 + ... + 144875028.

It is an arithmetic number, because the mean of its divisors is an integer number (1738499844).

Almost surely, 2^12169498866 is an apocalyptic number.

12169498866 is an abundant number, since it is smaller than the sum of its proper divisors (15646498638).

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

12169498866 is a wasteful number, since it uses less digits than its factorization.

12169498866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289749985.

The product of its digits is 8957952, while the sum is 60.

The spelling of 12169498866 in words is "twelve billion, one hundred sixty-nine million, four hundred ninety-eight thousand, eight hundred sixty-six".