540020605808 has 20 divisors (see below), whose sum is σ = 1071809191488. Its totient is φ = 263424685440.

The previous prime is 540020605769. The next prime is 540020605819. The reversal of 540020605808 is 808506020045.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 411600416 + ... + 411601727.

Almost surely, 2^540020605808 is an apocalyptic number.

It is an amenable number.

540020605808 is a deficient number, since it is larger than the sum of its proper divisors (531788585680).

540020605808 is a wasteful number, since it uses less digits than its factorization.

540020605808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823202192 (or 823202186 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 540020605808 in words is "five hundred forty billion, twenty million, six hundred five thousand, eight hundred eight".