1163818368 has 384 divisors, whose sum is σ = 3849431040. Its totient is φ = 348364800.

The previous prime is 1163818367. The next prime is 1163818373. The reversal of 1163818368 is 8638183611.

1163818368 is a `hidden beast` number, since 1 + 1 + 638 + 1 + 8 + 3 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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 (1163818363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16391773 + ... + 16391843.

It is an arithmetic number, because the mean of its divisors is an integer number (10024560).

Almost surely, 2^1163818368 is an apocalyptic number.

1163818368 is a gapful number since it is divisible by the number (18) 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 1163818368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924715520).

1163818368 is an abundant number, since it is smaller than the sum of its proper divisors (2685612672).

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

1163818368 is an equidigital number, since it uses as much as digits as its factorization.

1163818368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 124 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 1163818368 is about 34114.7822505142. The cubic root of 1163818368 is about 1051.8691929675.

The spelling of 1163818368 in words is "one billion, one hundred sixty-three million, eight hundred eighteen thousand, three hundred sixty-eight".