545033543220 has 144 divisors (see below), whose sum is σ = 1751353727760. Its totient is φ = 136727543808.

The previous prime is 545033543191. The next prime is 545033543251. The reversal of 545033543220 is 22345330545.

545033543220 is a `hidden beast` number, since 54 + 50 + 335 + 4 + 3 + 220 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 27730242576 + 517303300644 = 166524^2 + 719238^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6546816 + ... + 6629544.

It is an arithmetic number, because the mean of its divisors is an integer number (12162178665).

Almost surely, 2^545033543220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545033543220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875676863880).

545033543220 is an abundant number, since it is smaller than the sum of its proper divisors (1206320184540).

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

545033543220 is a wasteful number, since it uses less digits than its factorization.

545033543220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84914 (or 84909 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 545033543220 its reverse (22345330545), we get a palindrome (567378873765).

The spelling of 545033543220 in words is "five hundred forty-five billion, thirty-three million, five hundred forty-three thousand, two hundred twenty".