505500205303445 has 64 divisors (see below), whose sum is σ = 685792962312192. Its totient is φ = 354370879488000.

The previous prime is 505500205303399. The next prime is 505500205303459. The reversal of 505500205303445 is 544303502005505.

It is not a de Polignac number, because 505500205303445 - 2¹⁸ = 505500205041301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10655320925 + ... + 10655368365.

It is an arithmetic number, because the mean of its divisors is an integer number (10715515036128).

Almost surely, 2^{505500205303445} is an apocalyptic number.

505500205303445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505500205303445 is a deficient number, since it is larger than the sum of its proper divisors (180292757008747).

505500205303445 is a wasteful number, since it uses less digits than its factorization.

505500205303445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72062.

The product of its (nonzero) digits is 900000, while the sum is 41.

The spelling of 505500205303445 in words is "five hundred five trillion, five hundred billion, two hundred five million, three hundred three thousand, four hundred forty-five".