550897658857728 has 432 divisors, whose sum is σ = 1955020915900416. Its totient is φ = 145284305633280.

The previous prime is 550897658857709. The next prime is 550897658857771. The reversal of 550897658857728 is 827758856798055.

550897658857728 is a `hidden beast` number, since 5 + 5 + 0 + 8 + 9 + 7 + 6 + 5 + 8 + 8 + 577 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5027897601 + ... + 5028007167.

Almost surely, 2^{550897658857728} 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 550897658857728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977510457950208).

550897658857728 is an abundant number, since it is smaller than the sum of its proper divisors (1404123257042688).

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

550897658857728 is a wasteful number, since it uses less digits than its factorization.

550897658857728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133590 (or 133573 counting only the distinct ones).

The product of its (nonzero) digits is 94832640000, while the sum is 90.

The spelling of 550897658857728 in words is "five hundred fifty trillion, eight hundred ninety-seven billion, six hundred fifty-eight million, eight hundred fifty-seven thousand, seven hundred twenty-eight".