540504401020 has 12 divisors (see below), whose sum is σ = 1135059242184. Its totient is φ = 216201760400.

The previous prime is 540504400999. The next prime is 540504401039. The reversal of 540504401020 is 20104405045.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13512610006 + ... + 13512610045.

It is an arithmetic number, because the mean of its divisors is an integer number (94588270182).

Almost surely, 2^540504401020 is an apocalyptic number.

It is an amenable number.

540504401020 is an abundant number, since it is smaller than the sum of its proper divisors (594554841164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540504401020 is a wasteful number, since it uses less digits than its factorization.

540504401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27025220060 (or 27025220058 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 540504401020 its reverse (20104405045), we get a palindrome (560608806065).

The spelling of 540504401020 in words is "five hundred forty billion, five hundred four million, four hundred one thousand, twenty".