1165847760 has 480 divisors, whose sum is σ = 5172740352. Its totient is φ = 227819520.

The previous prime is 1165847723. The next prime is 1165847779. The reversal of 1165847760 is 677485611.

1165847760 is a `hidden beast` number, since 1 + 1 + 6 + 584 + 7 + 7 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 941862 + ... + 943098.

Almost surely, 2^1165847760 is an apocalyptic number.

1165847760 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 1165847760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2586370176).

1165847760 is an abundant number, since it is smaller than the sum of its proper divisors (4006892592).

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

1165847760 is a wasteful number, since it uses less digits than its factorization.

1165847760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1165847760 is about 34144.5128827459. The cubic root of 1165847760 is about 1052.4802320054.

The spelling of 1165847760 in words is "one billion, one hundred sixty-five million, eight hundred forty-seven thousand, seven hundred sixty".