20202020202018 has 16 divisors (see below), whose sum is σ = 40404096524160. Its totient is φ = 6733997380656.

The previous prime is 20202020201999. The next prime is 20202020202031. The reversal of 20202020202018 is 81020202020202.

It is a junction number, because it is equal to n+sod(n) for n = 20202020201985 and 20202020202003.

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, 3439623 + ... + 7227381.

It is an arithmetic number, because the mean of its divisors is an integer number (2525256032760).

Almost surely, 2^{20202020202018} is an apocalyptic number.

20202020202018 is an abundant number, since it is smaller than the sum of its proper divisors (20202076322142).

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

20202020202018 is a wasteful number, since it uses less digits than its factorization.

20202020202018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676681.

The product of its (nonzero) digits is 512, while the sum is 21.

The spelling of 20202020202018 in words is "twenty trillion, two hundred two billion, twenty million, two hundred two thousand, eighteen".