16566828404 has 96 divisors (see below), whose sum is σ = 34445005056. Its totient is φ = 6826060800.

The previous prime is 16566828379. The next prime is 16566828407. The reversal of 16566828404 is 40482866561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16566828407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16037072 + ... + 16038104.

It is an arithmetic number, because the mean of its divisors is an integer number (358802136).

Almost surely, 2^16566828404 is an apocalyptic number.

16566828404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16566828404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17222502528).

16566828404 is an abundant number, since it is smaller than the sum of its proper divisors (17878176652).

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

16566828404 is a wasteful number, since it uses less digits than its factorization.

16566828404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 16566828404 in words is "sixteen billion, five hundred sixty-six million, eight hundred twenty-eight thousand, four hundred four".