545345530125543 has 72 divisors (see below), whose sum is σ = 964564743542400. Its totient is φ = 295222192092576.

The previous prime is 545345530125497. The next prime is 545345530125559. The reversal of 545345530125543 is 345521035543545.

It is a happy number.

545345530125543 is a `hidden beast` number, since 5 + 4 + 5 + 3 + 4 + 5 + 530 + 12 + 55 + 43 = 666.

It is not a de Polignac number, because 545345530125543 - 2¹⁷ = 545345529994471 is a prime.

It is a super-2 number, since 2×545345530125543² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545345530125543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545345530125593) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1509539230 + ... + 1509900452.

It is an arithmetic number, because the mean of its divisors is an integer number (13396732549200).

Almost surely, 2^{545345530125543} is an apocalyptic number.

545345530125543 is a deficient number, since it is larger than the sum of its proper divisors (419219213416857).

545345530125543 is a wasteful number, since it uses less digits than its factorization.

545345530125543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541441 (or 541431 counting only the distinct ones).

The product of its (nonzero) digits is 54000000, while the sum is 54.

The spelling of 545345530125543 in words is "five hundred forty-five trillion, three hundred forty-five billion, five hundred thirty million, one hundred twenty-five thousand, five hundred forty-three".