11366666281 has 2 divisors, whose sum is σ = 11366666282. Its totient is φ = 11366666280.

The previous prime is 11366666231. The next prime is 11366666317. The reversal of 11366666281 is 18266666311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11350984681 + 15681600 = 106541^2 + 3960^2 .

It is a cyclic number.

It is not a de Polignac number, because 11366666281 - 2¹⁵ = 11366633513 is a prime.

It is a super-2 number, since 2×11366666281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11366666221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5683333140 + 5683333141.

It is an arithmetic number, because the mean of its divisors is an integer number (5683333141).

Almost surely, 2^11366666281 is an apocalyptic number.

It is an amenable number.

11366666281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11366666281 is an equidigital number, since it uses as much as digits as its factorization.

11366666281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The spelling of 11366666281 in words is "eleven billion, three hundred sixty-six million, six hundred sixty-six thousand, two hundred eighty-one".