540661345305 has 8 divisors (see below), whose sum is σ = 865058152512. Its totient is φ = 288352717488.

The previous prime is 540661345277. The next prime is 540661345349. The reversal of 540661345305 is 503543166045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540661345305 - 2⁷ = 540661345177 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18022044829 + ... + 18022044858.

It is an arithmetic number, because the mean of its divisors is an integer number (108132269064).

Almost surely, 2^540661345305 is an apocalyptic number.

It is an amenable number.

540661345305 is a deficient number, since it is larger than the sum of its proper divisors (324396807207).

540661345305 is a wasteful number, since it uses less digits than its factorization.

540661345305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36044089695.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 540661345305 in words is "five hundred forty billion, six hundred sixty-one million, three hundred forty-five thousand, three hundred five".