201820002002 has 16 divisors (see below), whose sum is σ = 304943329152. Its totient is φ = 100173815520.

The previous prime is 201820001921. The next prime is 201820002019. The reversal of 201820002002 is 200200028102.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 142838 + ... + 651185.

It is an arithmetic number, because the mean of its divisors is an integer number (19058958072).

Almost surely, 2^201820002002 is an apocalyptic number.

201820002002 is a deficient number, since it is larger than the sum of its proper divisors (103123327150).

201820002002 is a wasteful number, since it uses less digits than its factorization.

201820002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794953.

The product of its (nonzero) digits is 128, while the sum is 17.

The spelling of 201820002002 in words is "two hundred one billion, eight hundred twenty million, two thousand, two".