1135666689 has 8 divisors (see below), whose sum is σ = 1593918240. Its totient is φ = 717263136.

The previous prime is 1135666663. The next prime is 1135666717. The reversal of 1135666689 is 9866665311.

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

It is not a de Polignac number, because 1135666689 - 2¹⁷ = 1135535617 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1135666489) 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, 9961932 + ... + 9962045.

It is an arithmetic number, because the mean of its divisors is an integer number (199239780).

Almost surely, 2^1135666689 is an apocalyptic number.

1135666689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1135666689 is a deficient number, since it is larger than the sum of its proper divisors (458251551).

1135666689 is a wasteful number, since it uses less digits than its factorization.

1135666689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19923999.

The product of its digits is 1399680, while the sum is 51.

The square root of 1135666689 is about 33699.6541376911. The cubic root of 1135666689 is about 1043.3186300965.

The spelling of 1135666689 in words is "one billion, one hundred thirty-five million, six hundred sixty-six thousand, six hundred eighty-nine".