551324420544 has 28 divisors (see below), whose sum is σ = 1458712529864. Its totient is φ = 183774806784.

The previous prime is 551324420509. The next prime is 551324420551. The reversal of 551324420544 is 445024423155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435740487 + ... + 1435740870.

Almost surely, 2^551324420544 is an apocalyptic number.

It is an amenable number.

551324420544 is an abundant number, since it is smaller than the sum of its proper divisors (907388109320).

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

551324420544 is a wasteful number, since it uses less digits than its factorization.

551324420544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871481372 (or 2871481362 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 551324420544 its reverse (445024423155), we get a palindrome (996348843699).

The spelling of 551324420544 in words is "five hundred fifty-one billion, three hundred twenty-four million, four hundred twenty thousand, five hundred forty-four".