540064502021 has 16 divisors (see below), whose sum is σ = 591506496000. Its totient is φ = 489017113200.

The previous prime is 540064501997. The next prime is 540064502039. The reversal of 540064502021 is 120205460045.

It is not a de Polignac number, because 540064502021 - 2¹⁴ = 540064485637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540064502071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815430 + ... + 3001128.

It is an arithmetic number, because the mean of its divisors is an integer number (36969156000).

Almost surely, 2^540064502021 is an apocalyptic number.

It is an amenable number.

540064502021 is a deficient number, since it is larger than the sum of its proper divisors (51441993979).

540064502021 is a wasteful number, since it uses less digits than its factorization.

540064502021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186760.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 540064502021 its reverse (120205460045), we get a palindrome (660269962066).

The spelling of 540064502021 in words is "five hundred forty billion, sixty-four million, five hundred two thousand, twenty-one".