540636565503 has 16 divisors (see below), whose sum is σ = 736233039360. Its totient is φ = 352733215296.

The previous prime is 540636565499. The next prime is 540636565529. The reversal of 540636565503 is 305565636045.

It is not a de Polignac number, because 540636565503 - 2² = 540636565499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540636565103) 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, 2252763 + ... + 2481171.

It is an arithmetic number, because the mean of its divisors is an integer number (46014564960).

Almost surely, 2^540636565503 is an apocalyptic number.

540636565503 is a deficient number, since it is larger than the sum of its proper divisors (195596473857).

540636565503 is a wasteful number, since it uses less digits than its factorization.

540636565503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245246.

The product of its (nonzero) digits is 4860000, while the sum is 48.

The spelling of 540636565503 in words is "five hundred forty billion, six hundred thirty-six million, five hundred sixty-five thousand, five hundred three".