1131335666 has 8 divisors (see below), whose sum is σ = 1699896240. Its totient is φ = 564703588.

The previous prime is 1131335659. The next prime is 1131335671. The reversal of 1131335666 is 6665331311.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480656 + ... + 483003.

It is an arithmetic number, because the mean of its divisors is an integer number (212487030).

Almost surely, 2^1131335666 is an apocalyptic number.

1131335666 is a deficient number, since it is larger than the sum of its proper divisors (568560574).

1131335666 is an equidigital number, since it uses as much as digits as its factorization.

1131335666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964248.

The product of its digits is 29160, while the sum is 35.

The square root of 1131335666 is about 33635.3335943023. Note that the first 3 decimals coincide. The cubic root of 1131335666 is about 1041.9906602562.

Adding to 1131335666 its reverse (6665331311), we get a palindrome (7796666977).

The spelling of 1131335666 in words is "one billion, one hundred thirty-one million, three hundred thirty-five thousand, six hundred sixty-six".