16566015116 has 12 divisors (see below), whose sum is σ = 33132030288. Its totient is φ = 7099720752.

The previous prime is 16566015113. The next prime is 16566015139. The reversal of 16566015116 is 61151066561.

16566015116 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 16566015116.

It is not an unprimeable number, because it can be changed into a prime (16566015113) 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, 295821671 + ... + 295821726.

It is an arithmetic number, because the mean of its divisors is an integer number (2761002524).

Almost surely, 2^16566015116 is an apocalyptic number.

It is an amenable number.

16566015116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16566015116 is a wasteful number, since it uses less digits than its factorization.

16566015116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591643408 (or 591643406 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 16566015116 in words is "sixteen billion, five hundred sixty-six million, fifteen thousand, one hundred sixteen".