1165069320 has 128 divisors (see below), whose sum is σ = 3658141440. Its totient is φ = 296524800.

The previous prime is 1165069319. The next prime is 1165069343. The reversal of 1165069320 is 239605611.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232845 + ... + 237795.

It is an arithmetic number, because the mean of its divisors is an integer number (28579230).

Almost surely, 2^1165069320 is an apocalyptic number.

1165069320 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 1165069320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829070720).

1165069320 is an abundant number, since it is smaller than the sum of its proper divisors (2493072120).

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

1165069320 is a wasteful number, since it uses less digits than its factorization.

1165069320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055 (or 5051 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1165069320 is about 34133.1117831352. Note that the first 3 decimals coincide. The cubic root of 1165069320 is about 1052.2459317946.

The spelling of 1165069320 in words is "one billion, one hundred sixty-five million, sixty-nine thousand, three hundred twenty".