16138684652 has 48 divisors (see below), whose sum is σ = 29314897920. Its totient is φ = 7769191872.

The previous prime is 16138684651. The next prime is 16138684669. The reversal of 16138684652 is 25648683161.

16138684652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16138684652² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16138684652.

It is not an unprimeable number, because it can be changed into a prime (16138684651) 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 15 ways as a sum of consecutive naturals, for example, 13595603 + ... + 13596789.

It is an arithmetic number, because the mean of its divisors is an integer number (610727040).

Almost surely, 2^16138684652 is an apocalyptic number.

It is an amenable number.

16138684652 is a deficient number, since it is larger than the sum of its proper divisors (13176213268).

16138684652 is a wasteful number, since it uses less digits than its factorization.

16138684652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 2388 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The spelling of 16138684652 in words is "sixteen billion, one hundred thirty-eight million, six hundred eighty-four thousand, six hundred fifty-two".