545221214452 has 24 divisors (see below), whose sum is σ = 956754358560. Its totient is φ = 271863611040.

The previous prime is 545221214449. The next prime is 545221214459. The reversal of 545221214452 is 254412122545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545221214459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2709423 + ... + 2903689.

It is an arithmetic number, because the mean of its divisors is an integer number (39864764940).

Almost surely, 2^545221214452 is an apocalyptic number.

It is an amenable number.

545221214452 is a deficient number, since it is larger than the sum of its proper divisors (411533144108).

545221214452 is a wasteful number, since it uses less digits than its factorization.

545221214452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196191 (or 196189 counting only the distinct ones).

The product of its digits is 128000, while the sum is 37.

Adding to 545221214452 its reverse (254412122545), we get a palindrome (799633336997).

The spelling of 545221214452 in words is "five hundred forty-five billion, two hundred twenty-one million, two hundred fourteen thousand, four hundred fifty-two".