1063555136280 has 768 divisors, whose sum is σ = 4741593292800. Its totient is φ = 200080834560.

The previous prime is 1063555136179. The next prime is 1063555136321. The reversal of 1063555136280 is 826315553601.

1063555136280 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 5 + 5 + 5 + 13 + 628 + 0 = 666.

It is a super-2 number, since 2×1063555136280² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10531225 + ... + 10631735.

It is an arithmetic number, because the mean of its divisors is an integer number (6173949600).

Almost surely, 2^{1063555136280} is an apocalyptic number.

1063555136280 is a gapful number since it is divisible by the number (10) 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 1063555136280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2370796646400).

1063555136280 is an abundant number, since it is smaller than the sum of its proper divisors (3678038156520).

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

1063555136280 is a wasteful number, since it uses less digits than its factorization.

1063555136280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100584 (or 100577 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 1063555136280 in words is "one trillion, sixty-three billion, five hundred fifty-five million, one hundred thirty-six thousand, two hundred eighty".