505120342105444 has 24 divisors (see below), whose sum is σ = 951958250066880. Its totient is φ = 233132298504864.

The previous prime is 505120342105433. The next prime is 505120342105469. The reversal of 505120342105444 is 444501243021505.

It is a junction number, because it is equal to n+sod(n) for n = 505120342105397 and 505120342105406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97887327 + ... + 102918265.

It is an arithmetic number, because the mean of its divisors is an integer number (39664927086120).

Almost surely, 2^{505120342105444} is an apocalyptic number.

It is an amenable number.

505120342105444 is a deficient number, since it is larger than the sum of its proper divisors (446837907961436).

505120342105444 is a wasteful number, since it uses less digits than its factorization.

505120342105444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961779 (or 6961777 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 505120342105444 its reverse (444501243021505), we get a palindrome (949621585126949).

The spelling of 505120342105444 in words is "five hundred five trillion, one hundred twenty billion, three hundred forty-two million, one hundred five thousand, four hundred forty-four".