555605505056 has 96 divisors (see below), whose sum is σ = 1332415671552. Its totient is φ = 222625382400.

The previous prime is 555605505031. The next prime is 555605505067. The reversal of 555605505056 is 650505506555.

It is a self number, because there is not a number n which added to its sum of digits gives 555605505056.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91880 + ... + 1058136.

It is an arithmetic number, because the mean of its divisors is an integer number (13879329912).

Almost surely, 2^555605505056 is an apocalyptic number.

555605505056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555605505056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666207835776).

555605505056 is an abundant number, since it is smaller than the sum of its proper divisors (776810166496).

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

555605505056 is a wasteful number, since it uses less digits than its factorization.

555605505056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966442 (or 966434 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 47.

The spelling of 555605505056 in words is "five hundred fifty-five billion, six hundred five million, five hundred five thousand, fifty-six".