2000018200020 has 48 divisors (see below), whose sum is σ = 5600720075328. Its totient is φ = 533274461440.

The previous prime is 2000018199941. The next prime is 2000018200049. The reversal of 2000018200020 is 200028100002.

It is a super-2 number, since 2×2000018200020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484001 + ... + 2490440.

It is an arithmetic number, because the mean of its divisors is an integer number (116681668236).

Almost surely, 2^{2000018200020} is an apocalyptic number.

2000018200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000018200020 is an abundant number, since it is smaller than the sum of its proper divisors (3600701875308).

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

2000018200020 is a wasteful number, since it uses less digits than its factorization.

2000018200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982840 (or 3982838 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The spelling of 2000018200020 in words is "two trillion, eighteen million, two hundred thousand, twenty".