16505103116 has 12 divisors (see below), whose sum is σ = 29664577488. Its totient is φ = 8029509552.

The previous prime is 16505103113. The next prime is 16505103143. The reversal of 16505103116 is 61130150561.

It is not an unprimeable number, because it can be changed into a prime (16505103113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55760336 + ... + 55760631.

It is an arithmetic number, because the mean of its divisors is an integer number (2472048124).

Almost surely, 2^16505103116 is an apocalyptic number.

It is an amenable number.

16505103116 is a deficient number, since it is larger than the sum of its proper divisors (13159474372).

16505103116 is a wasteful number, since it uses less digits than its factorization.

16505103116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111521008 (or 111521006 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

Adding to 16505103116 its reverse (61130150561), we get a palindrome (77635253677).

The spelling of 16505103116 in words is "sixteen billion, five hundred five million, one hundred three thousand, one hundred sixteen".