16565740652 has 12 divisors (see below), whose sum is σ = 29088990336. Its totient is φ = 8254600560.

The previous prime is 16565740643. The next prime is 16565740699. The reversal of 16565740652 is 25604756561.

It is a junction number, because it is equal to n+sod(n) for n = 16565740597 and 16565740606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066124 + ... + 7068467.

It is an arithmetic number, because the mean of its divisors is an integer number (2424082528).

Almost surely, 2^16565740652 is an apocalyptic number.

It is an amenable number.

16565740652 is a deficient number, since it is larger than the sum of its proper divisors (12523249684).

16565740652 is a wasteful number, since it uses less digits than its factorization.

16565740652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134888 (or 14134886 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 16565740652 in words is "sixteen billion, five hundred sixty-five million, seven hundred forty thousand, six hundred fifty-two".