18202020002 has 16 divisors (see below), whose sum is σ = 28565317440. Its totient is φ = 8682336432.

The previous prime is 18202019989. The next prime is 18202020017. The reversal of 18202020002 is 20002020281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504593 + ... + 539460.

It is an arithmetic number, because the mean of its divisors is an integer number (1785332340).

Almost surely, 2^18202020002 is an apocalyptic number.

18202020002 is a deficient number, since it is larger than the sum of its proper divisors (10363297438).

18202020002 is a wasteful number, since it uses less digits than its factorization.

18202020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044457.

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

Adding to 18202020002 its reverse (20002020281), we get a palindrome (38204040283).

The spelling of 18202020002 in words is "eighteen billion, two hundred two million, twenty thousand, two".