1165839360 has 264 divisors, whose sum is σ = 4340458800. Its totient is φ = 266305536.

The previous prime is 1165839343. The next prime is 1165839377. The reversal of 1165839360 is 639385611.

It is a happy number.

1165839360 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1165839343) and next prime (1165839377).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 751866 + ... + 753414.

Almost surely, 2^1165839360 is an apocalyptic number.

1165839360 is a gapful number since it is divisible by the number (10) 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 1165839360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2170229400).

1165839360 is an abundant number, since it is smaller than the sum of its proper divisors (3174619440).

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

1165839360 is a wasteful number, since it uses less digits than its factorization.

1165839360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1165839360 is about 34144.3898759372. The cubic root of 1165839360 is about 1052.4777042725.

The spelling of 1165839360 in words is "one billion, one hundred sixty-five million, eight hundred thirty-nine thousand, three hundred sixty".