545044165445 has 12 divisors (see below), whose sum is σ = 708234904836. Its totient is φ = 402494152320.

The previous prime is 545044165441. The next prime is 545044165451. The reversal of 545044165445 is 544561440545.

It can be written as a sum of positive squares in 6 ways, for example, as 77962133089 + 467082032356 = 279217^2 + 683434^2 .

It is not a de Polignac number, because 545044165445 - 2² = 545044165441 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545044165445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545044165441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322510496 + ... + 322512185.

It is an arithmetic number, because the mean of its divisors is an integer number (59019575403).

Almost surely, 2^545044165445 is an apocalyptic number.

It is an amenable number.

545044165445 is a deficient number, since it is larger than the sum of its proper divisors (163190739391).

545044165445 is a wasteful number, since it uses less digits than its factorization.

545044165445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645022712 (or 645022699 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 47.

The spelling of 545044165445 in words is "five hundred forty-five billion, forty-four million, one hundred sixty-five thousand, four hundred forty-five".