1165113648 has 60 divisors (see below), whose sum is σ = 3262994280. Its totient is φ = 388098048.

The previous prime is 1165113647. The next prime is 1165113659. The reversal of 1165113648 is 8463115611.

It is a happy number.

1165113648 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 1 + 1 + 3 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1165113647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394963 + ... + 397901.

It is an arithmetic number, because the mean of its divisors is an integer number (54383238).

Almost surely, 2^1165113648 is an apocalyptic number.

1165113648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1165113648 is an abundant number, since it is smaller than the sum of its proper divisors (2097880632).

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

1165113648 is a wasteful number, since it uses less digits than its factorization.

1165113648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706 (or 5697 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1165113648 is about 34133.7611171110. The cubic root of 1165113648 is about 1052.2592767420.

The spelling of 1165113648 in words is "one billion, one hundred sixty-five million, one hundred thirteen thousand, six hundred forty-eight".