551328449760 has 576 divisors, whose sum is σ = 2226226451904. Its totient is φ = 122722713600.

The previous prime is 551328449759. The next prime is 551328449807. The reversal of 551328449760 is 67944823155.

It is a happy number.

551328449760 is a `hidden beast` number, since 5 + 5 + 13 + 2 + 84 + 497 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 551328449697 and 551328449706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11015512 + ... + 11065448.

It is an arithmetic number, because the mean of its divisors is an integer number (3864976479).

It is a 1-persistent number, because it is pandigital, but 2⋅551328449760 = 1102656899520 is not.

Almost surely, 2^551328449760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551328449760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113113225952).

551328449760 is an abundant number, since it is smaller than the sum of its proper divisors (1674898002144).

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

551328449760 is a wasteful number, since it uses less digits than its factorization.

551328449760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50027 (or 50016 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 551328449760 in words is "five hundred fifty-one billion, three hundred twenty-eight million, four hundred forty-nine thousand, seven hundred sixty".