11662233137 has 2 divisors, whose sum is σ = 11662233138. Its totient is φ = 11662233136.

The previous prime is 11662233133. The next prime is 11662233173. The reversal of 11662233137 is 73133226611.

Together with next prime (11662233173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10991215921 + 671017216 = 104839^2 + 25904^2 .

It is a cyclic number.

It is not a de Polignac number, because 11662233137 - 2² = 11662233133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11662233097 and 11662233106.

It is not a weakly prime, because it can be changed into another prime (11662233133) by changing a digit.

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 as a sum of consecutive naturals, namely, 5831116568 + 5831116569.

It is an arithmetic number, because the mean of its divisors is an integer number (5831116569).

Almost surely, 2^11662233137 is an apocalyptic number.

It is an amenable number.

11662233137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662233137 is an equidigital number, since it uses as much as digits as its factorization.

11662233137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

Adding to 11662233137 its reverse (73133226611), we get a palindrome (84795459748).

The spelling of 11662233137 in words is "eleven billion, six hundred sixty-two million, two hundred thirty-three thousand, one hundred thirty-seven".