505544152144 has 20 divisors (see below), whose sum is σ = 1022078395296. Its totient is φ = 241781985632.

The previous prime is 505544152133. The next prime is 505544152181. The reversal of 505544152144 is 441251445505.

It is a junction number, because it is equal to n+sod(n) for n = 505544152097 and 505544152106.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 686880274 + ... + 686881009.

Almost surely, 2^505544152144 is an apocalyptic number.

It is an amenable number.

505544152144 is an abundant number, since it is smaller than the sum of its proper divisors (516534243152).

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

505544152144 is a wasteful number, since it uses less digits than its factorization.

505544152144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373761314 (or 1373761308 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

Adding to 505544152144 its reverse (441251445505), we get a palindrome (946795597649).

The spelling of 505544152144 in words is "five hundred five billion, five hundred forty-four million, one hundred fifty-two thousand, one hundred forty-four".