540161535506 has 12 divisors (see below), whose sum is σ = 813407463258. Its totient is φ = 269029804032.

The previous prime is 540161535493. The next prime is 540161535509. The reversal of 540161535506 is 605535161045.

It can be written as a sum of positive squares in 3 ways, for example, as 538455102025 + 1706433481 = 733795^2 + 41309^2 .

It is not an unprimeable number, because it can be changed into a prime (540161535509) 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 5 ways as a sum of consecutive naturals, for example, 1912451 + ... + 2176646.

Almost surely, 2^540161535506 is an apocalyptic number.

540161535506 is a deficient number, since it is larger than the sum of its proper divisors (273245927752).

540161535506 is an equidigital number, since it uses as much as digits as its factorization.

540161535506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089613 (or 4089356 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 540161535506 in words is "five hundred forty billion, one hundred sixty-one million, five hundred thirty-five thousand, five hundred six".