11660616229 has 2 divisors, whose sum is σ = 11660616230. Its totient is φ = 11660616228.

The previous prime is 11660616173. The next prime is 11660616239. The reversal of 11660616229 is 92261606611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8490701025 + 3169915204 = 92145^2 + 56302^2 .

It is an emirp because it is prime and its reverse (92261606611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11660616229 - 2¹¹ = 11660614181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11660616191 and 11660616200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660616239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830308114 + 5830308115.

It is an arithmetic number, because the mean of its divisors is an integer number (5830308115).

Almost surely, 2^11660616229 is an apocalyptic number.

It is an amenable number.

11660616229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660616229 is an equidigital number, since it uses as much as digits as its factorization.

11660616229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 11660616229 in words is "eleven billion, six hundred sixty million, six hundred sixteen thousand, two hundred twenty-nine".