11666259313 has 2 divisors, whose sum is σ = 11666259314. Its totient is φ = 11666259312.

The previous prime is 11666259289. The next prime is 11666259317. The reversal of 11666259313 is 31395266611.

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., 8275177024 + 3391082289 = 90968^2 + 58233^2 .

It is a cyclic number.

It is not a de Polignac number, because 11666259313 - 2²⁹ = 11129388401 is a prime.

It is a super-2 number, since 2×11666259313² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11666259313.

It is not a weakly prime, because it can be changed into another prime (11666259317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833129656 + 5833129657.

It is an arithmetic number, because the mean of its divisors is an integer number (5833129657).

Almost surely, 2^11666259313 is an apocalyptic number.

It is an amenable number.

11666259313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666259313 is an equidigital number, since it uses as much as digits as its factorization.

11666259313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 43.

The spelling of 11666259313 in words is "eleven billion, six hundred sixty-six million, two hundred fifty-nine thousand, three hundred thirteen".