545221535000 has 160 divisors (see below), whose sum is σ = 1353927104640. Its totient is φ = 205058304000.

The previous prime is 545221534939. The next prime is 545221535003. The reversal of 545221535000 is 535122545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545221535003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 108542489 + ... + 108547511.

It is an arithmetic number, because the mean of its divisors is an integer number (8462044404).

Almost surely, 2^545221535000 is an apocalyptic number.

545221535000 is a gapful number since it is divisible by the number (50) 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 545221535000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676963552320).

545221535000 is an abundant number, since it is smaller than the sum of its proper divisors (808705569640).

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

545221535000 is a wasteful number, since it uses less digits than its factorization.

545221535000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343 (or 6324 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 545221535000 its reverse (535122545), we get a palindrome (545756657545).

The spelling of 545221535000 in words is "five hundred forty-five billion, two hundred twenty-one million, five hundred thirty-five thousand".