545205635320 has 128 divisors (see below), whose sum is σ = 1302570201600. Its totient is φ = 204934664704.

The previous prime is 545205635311. The next prime is 545205635321. The reversal of 545205635320 is 23536502545.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545205635321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154316274 + ... + 154319806.

It is an arithmetic number, because the mean of its divisors is an integer number (10176329700).

Almost surely, 2^545205635320 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 545205635320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651285100800).

545205635320 is an abundant number, since it is smaller than the sum of its proper divisors (757364566280).

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

545205635320 is a wasteful number, since it uses less digits than its factorization.

545205635320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 545205635320 in words is "five hundred forty-five billion, two hundred five million, six hundred thirty-five thousand, three hundred twenty".