1165453760 has 56 divisors (see below), whose sum is σ = 2813310096. Its totient is φ = 459786240.

The previous prime is 1165453759. The next prime is 1165453763. The reversal of 1165453760 is 673545611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165453763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586 + ... + 48305.

Almost surely, 2^1165453760 is an apocalyptic number.

1165453760 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 1165453760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406655048).

1165453760 is an abundant number, since it is smaller than the sum of its proper divisors (1647856336).

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

1165453760 is an equidigital number, since it uses as much as digits as its factorization.

1165453760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49981 (or 49971 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1165453760 is about 34138.7428005192. The cubic root of 1165453760 is about 1052.3616562221.

The spelling of 1165453760 in words is "one billion, one hundred sixty-five million, four hundred fifty-three thousand, seven hundred sixty".