11663675237 has 2 divisors, whose sum is σ = 11663675238. Its totient is φ = 11663675236.

The previous prime is 11663675227. The next prime is 11663675273. The reversal of 11663675237 is 73257636611.

Together with next prime (11663675273) 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., 6824246881 + 4839428356 = 82609^2 + 69566^2 .

It is an emirp because it is prime and its reverse (73257636611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11663675237 - 2⁶ = 11663675173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11663675191 and 11663675200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11663675227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831837618 + 5831837619.

It is an arithmetic number, because the mean of its divisors is an integer number (5831837619).

Almost surely, 2^11663675237 is an apocalyptic number.

It is an amenable number.

11663675237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11663675237 is an equidigital number, since it uses as much as digits as its factorization.

11663675237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The spelling of 11663675237 in words is "eleven billion, six hundred sixty-three million, six hundred seventy-five thousand, two hundred thirty-seven".