1133255681280 has 720 divisors, whose sum is σ = 4228456877568. Its totient is φ = 289474560000.

The previous prime is 1133255681279. The next prime is 1133255681297. The reversal of 1133255681280 is 821865523311.

1133255681280 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 2 + 5 + 568 + 1 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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 79 ways as a sum of consecutive naturals, for example, 324620335 + ... + 324623825.

Almost surely, 2^{1133255681280} is an apocalyptic number.

1133255681280 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 1133255681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2114228438784).

1133255681280 is an abundant number, since it is smaller than the sum of its proper divisors (3095201196288).

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

1133255681280 is a wasteful number, since it uses less digits than its factorization.

1133255681280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 1133255681280 in words is "one trillion, one hundred thirty-three billion, two hundred fifty-five million, six hundred eighty-one thousand, two hundred eighty".