545223214220 has 48 divisors (see below), whose sum is σ = 1233290354688. Its totient is φ = 201877874880.

The previous prime is 545223214201. The next prime is 545223214223. The reversal of 545223214220 is 22412322545.

It is not an unprimeable number, because it can be changed into a prime (545223214223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19102964 + ... + 19131483.

It is an arithmetic number, because the mean of its divisors is an integer number (25693549056).

Almost surely, 2^545223214220 is an apocalyptic number.

It is an amenable number.

545223214220 is an abundant number, since it is smaller than the sum of its proper divisors (688067140468).

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

545223214220 is a wasteful number, since it uses less digits than its factorization.

545223214220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38234510 (or 38234508 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 545223214220 its reverse (22412322545), we get a palindrome (567635536765).

The spelling of 545223214220 in words is "five hundred forty-five billion, two hundred twenty-three million, two hundred fourteen thousand, two hundred twenty".