11331235666 has 8 divisors (see below), whose sum is σ = 17056913904. Its totient is φ = 5645597700.

The previous prime is 11331235651. The next prime is 11331235667. The reversal of 11331235666 is 66653213311.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (11331235667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10009360 + ... + 10010491.

It is an arithmetic number, because the mean of its divisors is an integer number (2132114238).

Almost surely, 2^11331235666 is an apocalyptic number.

11331235666 is a deficient number, since it is larger than the sum of its proper divisors (5725678238).

11331235666 is a wasteful number, since it uses less digits than its factorization.

11331235666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020136.

The product of its digits is 58320, while the sum is 37.

Adding to 11331235666 its reverse (66653213311), we get a palindrome (77984448977).

The spelling of 11331235666 in words is "eleven billion, three hundred thirty-one million, two hundred thirty-five thousand, six hundred sixty-six".