16820232008 has 8 divisors (see below), whose sum is σ = 31537935030. Its totient is φ = 8410116000.

The previous prime is 16820231983. The next prime is 16820232031. The reversal of 16820232008 is 80023202861.

16820232008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13456464004 + 3363768004 = 116002^2 + 57998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1051264493 + ... + 1051264508.

Almost surely, 2^16820232008 is an apocalyptic number.

It is an amenable number.

16820232008 is a deficient number, since it is larger than the sum of its proper divisors (14717703022).

16820232008 is a wasteful number, since it uses less digits than its factorization.

16820232008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102529007 (or 2102529003 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 16820232008 its reverse (80023202861), we get a palindrome (96843434869).

The spelling of 16820232008 in words is "sixteen billion, eight hundred twenty million, two hundred thirty-two thousand, eight".