16501968652 has 24 divisors (see below), whose sum is σ = 31761567936. Its totient is φ = 7454243328.

The previous prime is 16501968649. The next prime is 16501968667. The reversal of 16501968652 is 25686910561.

16501968652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16501968596 and 16501968605.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3373573 + ... + 3378460.

It is an arithmetic number, because the mean of its divisors is an integer number (1323398664).

Almost surely, 2^16501968652 is an apocalyptic number.

It is an amenable number.

16501968652 is a deficient number, since it is larger than the sum of its proper divisors (15259599284).

16501968652 is a wasteful number, since it uses less digits than its factorization.

16501968652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752097 (or 6752095 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 16501968652 in words is "sixteen billion, five hundred one million, nine hundred sixty-eight thousand, six hundred fifty-two".