1165382064 has 240 divisors, whose sum is σ = 4135282944. Its totient is φ = 297561600.

The previous prime is 1165382033. The next prime is 1165382069. The reversal of 1165382064 is 4602835611.

It is a happy number.

1165382064 is a `hidden beast` number, since 116 + 538 + 2 + 0 + 6 + 4 = 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 (1165382069) 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, 675507 + ... + 677229.

Almost surely, 2^1165382064 is an apocalyptic number.

1165382064 is a gapful number since it is divisible by the number (14) 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 1165382064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067641472).

1165382064 is an abundant number, since it is smaller than the sum of its proper divisors (2969900880).

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

1165382064 is a wasteful number, since it uses less digits than its factorization.

1165382064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1165382064 is about 34137.6927164095. The cubic root of 1165382064 is about 1052.3400761672.

The spelling of 1165382064 in words is "one billion, one hundred sixty-five million, three hundred eighty-two thousand, sixty-four".