1116641280 has 192 divisors, whose sum is σ = 3610414080. Its totient is φ = 294617088.

The previous prime is 1116641269. The next prime is 1116641293. The reversal of 1116641280 is 821466111.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 5007249 + ... + 5007471.

It is an arithmetic number, because the mean of its divisors is an integer number (18804240).

Almost surely, 2^1116641280 is an apocalyptic number.

1116641280 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 1116641280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805207040).

1116641280 is an abundant number, since it is smaller than the sum of its proper divisors (2493772800).

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

1116641280 is a wasteful number, since it uses less digits than its factorization.

1116641280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1116641280 is about 33416.1829058916. The cubic root of 1116641280 is about 1037.4596777284.

The spelling of 1116641280 in words is "one billion, one hundred sixteen million, six hundred forty-one thousand, two hundred eighty".