1000543405220 has 24 divisors (see below), whose sum is σ = 2132501469504. Its totient is φ = 394243968096.

The previous prime is 1000543405219. The next prime is 1000543405231. The reversal of 1000543405220 is 225043450001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000543405220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373335752 + ... + 373338431.

It is an arithmetic number, because the mean of its divisors is an integer number (88854227896).

Almost surely, 2^{1000543405220} is an apocalyptic number.

1000543405220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000543405220 is an abundant number, since it is smaller than the sum of its proper divisors (1131958064284).

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

1000543405220 is a wasteful number, since it uses less digits than its factorization.

1000543405220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746674259 (or 746674257 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 1000543405220 its reverse (225043450001), we get a palindrome (1225586855221).

The spelling of 1000543405220 in words is "one trillion, five hundred forty-three million, four hundred five thousand, two hundred twenty".