545542271361 has 24 divisors (see below), whose sum is σ = 789753308136. Its totient is φ = 362888951040.

The previous prime is 545542271353. The next prime is 545542271383. The reversal of 545542271361 is 163172245545.

545542271361 is a `hidden beast` number, since 5 + 4 + 5 + 542 + 2 + 71 + 36 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 187537499136 + 358004772225 = 433056^2 + 598335^2 .

It is not a de Polignac number, because 545542271361 - 2³ = 545542271353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545542271341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8612341 + ... + 8675453.

It is an arithmetic number, because the mean of its divisors is an integer number (32906387839).

Almost surely, 2^545542271361 is an apocalyptic number.

It is an amenable number.

545542271361 is a deficient number, since it is larger than the sum of its proper divisors (244211036775).

545542271361 is a wasteful number, since it uses less digits than its factorization.

545542271361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65233 (or 65230 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 545542271361 in words is "five hundred forty-five billion, five hundred forty-two million, two hundred seventy-one thousand, three hundred sixty-one".