16581110796 has 18 divisors (see below), whose sum is σ = 41913363492. Its totient is φ = 5527036920.

The previous prime is 16581110747. The next prime is 16581110797. The reversal of 16581110796 is 69701118561.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16581110797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230293170 + ... + 230293241.

It is an arithmetic number, because the mean of its divisors is an integer number (2328520194).

Almost surely, 2^16581110796 is an apocalyptic number.

It is an amenable number.

16581110796 is an abundant number, since it is smaller than the sum of its proper divisors (25332252696).

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

16581110796 is a wasteful number, since it uses less digits than its factorization.

16581110796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460586421 (or 460586416 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 16581110796 in words is "sixteen billion, five hundred eighty-one million, one hundred ten thousand, seven hundred ninety-six".