2020001818188 has 24 divisors (see below), whose sum is σ = 4990592727792. Its totient is φ = 633726060544.

The previous prime is 2020001818157. The next prime is 2020001818193. The reversal of 2020001818188 is 8818181000202.

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, 4950984645 + ... + 4950985052.

It is an arithmetic number, because the mean of its divisors is an integer number (207941363658).

Almost surely, 2^{2020001818188} is an apocalyptic number.

It is an amenable number.

2020001818188 is an abundant number, since it is smaller than the sum of its proper divisors (2970590909604).

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

2020001818188 is a wasteful number, since it uses less digits than its factorization.

2020001818188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9901969721 (or 9901969719 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 39.

The spelling of 2020001818188 in words is "two trillion, twenty billion, one million, eight hundred eighteen thousand, one hundred eighty-eight".