1116273648 has 160 divisors (see below), whose sum is σ = 3387640320. Its totient is φ = 310164480.

The previous prime is 1116273647. The next prime is 1116273649. The reversal of 1116273648 is 8463726111.

It is an interprime number because it is at equal distance from previous prime (1116273647) and next prime (1116273649).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116273643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2192818 + ... + 2193326.

It is an arithmetic number, because the mean of its divisors is an integer number (21172752).

Almost surely, 2^1116273648 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 1116273648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693820160).

1116273648 is an abundant number, since it is smaller than the sum of its proper divisors (2271366672).

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

1116273648 is a wasteful number, since it uses less digits than its factorization.

1116273648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 689 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1116273648 is about 33410.6816452463. The cubic root of 1116273648 is about 1037.3458108888.

Adding to 1116273648 its reverse (8463726111), we get a palindrome (9579999759).

The spelling of 1116273648 in words is "one billion, one hundred sixteen million, two hundred seventy-three thousand, six hundred forty-eight".