545355043605 has 24 divisors (see below), whose sum is σ = 945315153432. Its totient is φ = 290845845504.

The previous prime is 545355043603. The next prime is 545355043691. The reversal of 545355043605 is 506340553545.

545355043605 is a `hidden beast` number, since 5 + 4 + 5 + 35 + 5 + 0 + 4 + 3 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 737611281 + 544617432324 = 27159^2 + 737982^2 .

It is not a de Polignac number, because 545355043605 - 2¹ = 545355043603 is a prime.

It is a super-2 number, since 2×545355043605² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545355043603) 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 23 ways as a sum of consecutive naturals, for example, 1190137 + ... + 1583393.

It is an arithmetic number, because the mean of its divisors is an integer number (39388131393).

Almost surely, 2^545355043605 is an apocalyptic number.

It is an amenable number.

545355043605 is a deficient number, since it is larger than the sum of its proper divisors (399960109827).

545355043605 is a wasteful number, since it uses less digits than its factorization.

545355043605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424085 (or 424082 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 45.

The spelling of 545355043605 in words is "five hundred forty-five billion, three hundred fifty-five million, forty-three thousand, six hundred five".