16669239368 has 8 divisors (see below), whose sum is σ = 31254823830. Its totient is φ = 8334619680.

The previous prime is 16669239341. The next prime is 16669239383. The reversal of 16669239368 is 86393296661.

It can be written as a sum of positive squares in only one way, i.e., 9331946404 + 7337292964 = 96602^2 + 85658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16669239368² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041827453 + ... + 1041827468.

Almost surely, 2^16669239368 is an apocalyptic number.

It is an amenable number.

16669239368 is a deficient number, since it is larger than the sum of its proper divisors (14585584462).

16669239368 is a wasteful number, since it uses less digits than its factorization.

16669239368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083654927 (or 2083654923 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 59.

The spelling of 16669239368 in words is "sixteen billion, six hundred sixty-nine million, two hundred thirty-nine thousand, three hundred sixty-eight".