1166089344 has 64 divisors (see below), whose sum is σ = 3539922240. Its totient is φ = 333167616.

The previous prime is 1166089343. The next prime is 1166089349. The reversal of 1166089344 is 4439806611.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1166089296 and 1166089305.

It is not an unprimeable number, because it can be changed into a prime (1166089343) 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, 214219 + ... + 219594.

It is an arithmetic number, because the mean of its divisors is an integer number (55311285).

Almost surely, 2^1166089344 is an apocalyptic number.

1166089344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1166089344 is an abundant number, since it is smaller than the sum of its proper divisors (2373832896).

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

1166089344 is an equidigital number, since it uses as much as digits as its factorization.

1166089344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433837 (or 433825 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1166089344 is about 34148.0503689449. The cubic root of 1166089344 is about 1052.5529244078.

The spelling of 1166089344 in words is "one billion, one hundred sixty-six million, eighty-nine thousand, three hundred forty-four".