1116641328 has 160 divisors (see below), whose sum is σ = 3440351232. Its totient is φ = 308121600.

The previous prime is 1116641299. The next prime is 1116641333. The reversal of 1116641328 is 8231466111.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276250 + ... + 280262.

Almost surely, 2^1116641328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1116641328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720175616).

1116641328 is an abundant number, since it is smaller than the sum of its proper divisors (2323709904).

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

1116641328 is a wasteful number, since it uses less digits than its factorization.

1116641328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4077 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1116641328 is about 33416.1836241064. The cubic root of 1116641328 is about 1037.4596925938.

The spelling of 1116641328 in words is "one billion, one hundred sixteen million, six hundred forty-one thousand, three hundred twenty-eight".