545204340440 has 32 divisors (see below), whose sum is σ = 1256629520160. Its totient is φ = 212762668800.

The previous prime is 545204340433. The next prime is 545204340449. The reversal of 545204340440 is 44043402545.

It is a self number, because there is not a number n which added to its sum of digits gives 545204340440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545204340449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166219196 + ... + 166222475.

It is an arithmetic number, because the mean of its divisors is an integer number (39269672505).

Almost surely, 2^545204340440 is an apocalyptic number.

It is an amenable number.

545204340440 is an abundant number, since it is smaller than the sum of its proper divisors (711425179720).

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

545204340440 is a wasteful number, since it uses less digits than its factorization.

545204340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332441723 (or 332441719 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 545204340440 its reverse (44043402545), we get a palindrome (589247742985).

The spelling of 545204340440 in words is "five hundred forty-five billion, two hundred four million, three hundred forty thousand, four hundred forty".