545332166420 has 12 divisors (see below), whose sum is σ = 1145197549524. Its totient is φ = 218132866560.

The previous prime is 545332166389. The next prime is 545332166429. The reversal of 545332166420 is 24661233545.

It can be written as a sum of positive squares in 2 ways, for example, as 185027301904 + 360304864516 = 430148^2 + 600254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545332166429) 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 3 ways as a sum of consecutive naturals, for example, 13633304141 + ... + 13633304180.

It is an arithmetic number, because the mean of its divisors is an integer number (95433129127).

Almost surely, 2^545332166420 is an apocalyptic number.

It is an amenable number.

545332166420 is an abundant number, since it is smaller than the sum of its proper divisors (599865383104).

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

545332166420 is a wasteful number, since it uses less digits than its factorization.

545332166420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27266608330 (or 27266608328 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 545332166420 its reverse (24661233545), we get a palindrome (569993399965).

The spelling of 545332166420 in words is "five hundred forty-five billion, three hundred thirty-two million, one hundred sixty-six thousand, four hundred twenty".