1165944336 has 40 divisors (see below), whose sum is σ = 3142983360. Its totient is φ = 371750016.

The previous prime is 1165944323. The next prime is 1165944341. The reversal of 1165944336 is 6334495611.

It is a happy number.

It is a super-4 number, since 4×1165944336⁴ (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526951 + ... + 529158.

It is an arithmetic number, because the mean of its divisors is an integer number (78574584).

Almost surely, 2^1165944336 is an apocalyptic number.

1165944336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1165944336 is an abundant number, since it is smaller than the sum of its proper divisors (1977039024).

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

1165944336 is a wasteful number, since it uses less digits than its factorization.

1165944336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056143 (or 1056137 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 1165944336 is about 34145.9270777643. The cubic root of 1165944336 is about 1052.5092928393.

The spelling of 1165944336 in words is "one billion, one hundred sixty-five million, nine hundred forty-four thousand, three hundred thirty-six".