1165119648 has 432 divisors, whose sum is σ = 4126489920. Its totient is φ = 286218240.

The previous prime is 1165119643. The next prime is 1165119679. The reversal of 1165119648 is 8469115611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (51840) is a multiple of the sum of its prime divisors (135).

It is not an unprimeable number, because it can be changed into a prime (1165119643) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 13091188 + ... + 13091276.

It is an arithmetic number, because the mean of its divisors is an integer number (9552060).

Almost surely, 2^1165119648 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 1165119648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063244960).

1165119648 is an abundant number, since it is smaller than the sum of its proper divisors (2961370272).

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

1165119648 is a wasteful number, since it uses less digits than its factorization.

1165119648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 135 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 1165119648 is about 34133.8490065214. The cubic root of 1165119648 is about 1052.2610830163.

The spelling of 1165119648 in words is "one billion, one hundred sixty-five million, one hundred nineteen thousand, six hundred forty-eight".