16820232001 has 8 divisors (see below), whose sum is σ = 17466518664. Its totient is φ = 16185185280.

The previous prime is 16820231983. The next prime is 16820232031. The reversal of 16820232001 is 10023202861.

16820232001 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 4 ways, for example, as 17850625 + 16802381376 = 4225^2 + 129624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16820232001 - 2⁹ = 16820231489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16820232031) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2806936 + ... + 2812921.

It is an arithmetic number, because the mean of its divisors is an integer number (2183314833).

Almost surely, 2^16820232001 is an apocalyptic number.

It is an amenable number.

16820232001 is a deficient number, since it is larger than the sum of its proper divisors (646286663).

16820232001 is an equidigital number, since it uses as much as digits as its factorization.

16820232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619971.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 16820232001 its reverse (10023202861), we get a palindrome (26843434862).

The spelling of 16820232001 in words is "sixteen billion, eight hundred twenty million, two hundred thirty-two thousand, one".