1055520655488 has 288 divisors, whose sum is σ = 3291869309040. Its totient is φ = 324491102208.

The previous prime is 1055520655487. The next prime is 1055520655513. The reversal of 1055520655488 is 8845560255501.

It is a happy number.

1055520655488 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 5 + 2 + 0 + 6 + 554 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×1055520655488² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055520655487) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 371268595 + ... + 371271437.

Almost surely, 2^{1055520655488} is an apocalyptic number.

1055520655488 is a gapful number since it is divisible by the number (18) 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 1055520655488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645934654520).

1055520655488 is an abundant number, since it is smaller than the sum of its proper divisors (2236348653552).

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

1055520655488 is a wasteful number, since it uses less digits than its factorization.

1055520655488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796 (or 4768 counting only the distinct ones).

The product of its (nonzero) digits is 9600000, while the sum is 54.

The spelling of 1055520655488 in words is "one trillion, fifty-five billion, five hundred twenty million, six hundred fifty-five thousand, four hundred eighty-eight".