540646646045 has 64 divisors (see below), whose sum is σ = 800157118464. Its totient is φ = 345745720320.

The previous prime is 540646646017. The next prime is 540646646069.

540646646045 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 540646646045 - 2¹⁴ = 540646629661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 540646645984 and 540646646002.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 632384 + ... + 1217046.

It is an arithmetic number, because the mean of its divisors is an integer number (12502454976).

Almost surely, 2^540646646045 is an apocalyptic number.

540646646045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

540646646045 is a deficient number, since it is larger than the sum of its proper divisors (259510472419).

540646646045 is a wasteful number, since it uses less digits than its factorization.

540646646045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584762.

The product of its (nonzero) digits is 8294400, while the sum is 50.

The spelling of 540646646045 in words is "five hundred forty billion, six hundred forty-six million, six hundred forty-six thousand, forty-five".