200343040020 has 144 divisors (see below), whose sum is σ = 613894619520. Its totient is φ = 52881700608.

The previous prime is 200343039931. The next prime is 200343040033. The reversal of 200343040020 is 20040343002.

200343040020 is a `hidden beast` number, since 200 + 3 + 43 + 0 + 400 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200343039975 and 200343040002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27981201 + ... + 27988359.

It is an arithmetic number, because the mean of its divisors is an integer number (4263157080).

Almost surely, 2^200343040020 is an apocalyptic number.

200343040020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200343040020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306947309760).

200343040020 is an abundant number, since it is smaller than the sum of its proper divisors (413551579500).

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

200343040020 is a wasteful number, since it uses less digits than its factorization.

200343040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 200343040020 its reverse (20040343002), we get a palindrome (220383383022).

The spelling of 200343040020 in words is "two hundred billion, three hundred forty-three million, forty thousand, twenty".