1165601360 has 320 divisors, whose sum is σ = 3719761920. Its totient is φ = 328458240.

The previous prime is 1165601323. The next prime is 1165601377. The reversal of 1165601360 is 631065611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2691704 + ... + 2692136.

It is an arithmetic number, because the mean of its divisors is an integer number (11624256).

Almost surely, 2^1165601360 is an apocalyptic number.

1165601360 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 1165601360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1859880960).

1165601360 is an abundant number, since it is smaller than the sum of its proper divisors (2554160560).

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

1165601360 is a wasteful number, since it uses less digits than its factorization.

1165601360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1165601360 is about 34140.9044988559. The cubic root of 1165601360 is about 1052.4060801278.

Adding to 1165601360 its reverse (631065611), we get a palindrome (1796666971).

The spelling of 1165601360 in words is "one billion, one hundred sixty-five million, six hundred one thousand, three hundred sixty".