505560445164 has 48 divisors (see below), whose sum is σ = 1310757517440. Its totient is φ = 168514330320.

The previous prime is 505560445157. The next prime is 505560445217. The reversal of 505560445164 is 461544065505.

505560445164 is a `hidden beast` number, since 5 + 0 + 556 + 0 + 44 + 51 + 6 + 4 = 666.

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 15 ways as a sum of consecutive naturals, for example, 4021687 + ... + 4145489.

It is an arithmetic number, because the mean of its divisors is an integer number (27307448280).

Almost surely, 2^505560445164 is an apocalyptic number.

505560445164 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

505560445164 is an abundant number, since it is smaller than the sum of its proper divisors (805197072276).

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

505560445164 is a wasteful number, since it uses less digits than its factorization.

505560445164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161627 (or 161619 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 505560445164 in words is "five hundred five billion, five hundred sixty million, four hundred forty-five thousand, one hundred sixty-four".