505545540360 has 128 divisors (see below), whose sum is σ = 1793068012800. Its totient is φ = 111568665600.

The previous prime is 505545540359. The next prime is 505545540391. The reversal of 505545540360 is 63045545505.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10352191 + ... + 10400910.

It is an arithmetic number, because the mean of its divisors is an integer number (14008343850).

Almost surely, 2^505545540360 is an apocalyptic number.

It is an amenable number.

505545540360 is an abundant number, since it is smaller than the sum of its proper divisors (1287522472440).

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

505545540360 is a wasteful number, since it uses less digits than its factorization.

505545540360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753151 (or 20753147 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 505545540360 in words is "five hundred five billion, five hundred forty-five million, five hundred forty thousand, three hundred sixty".