1140351666 has 8 divisors (see below), whose sum is σ = 2280703344. Its totient is φ = 380117220.

The previous prime is 1140351637. The next prime is 1140351673. The reversal of 1140351666 is 6661530411.

It is a sphenic number, since it is the product of 3 distinct primes.

1140351666 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95029300 + ... + 95029311.

It is an arithmetic number, because the mean of its divisors is an integer number (285087918).

Almost surely, 2^1140351666 is an apocalyptic number.

1140351666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1140351666 is a wasteful number, since it uses less digits than its factorization.

1140351666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190058616.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1140351666 is about 33769.0933547230. The cubic root of 1140351666 is about 1044.7513326652.

The spelling of 1140351666 in words is "one billion, one hundred forty million, three hundred fifty-one thousand, six hundred sixty-six".