11666670250577 has 2 divisors, whose sum is σ = 11666670250578. Its totient is φ = 11666670250576.

The previous prime is 11666670250567. The next prime is 11666670250579. The reversal of 11666670250577 is 77505207666611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5932541933761 + 5734128316816 = 2435681^2 + 2394604^2 .

It is an emirp because it is prime and its reverse (77505207666611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11666670250577 - 2¹⁶ = 11666670185041 is a prime.

It is a super-2 number, since 2×11666670250577² (a number of 27 digits) contains 22 as substring.

Together with 11666670250579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11666670250579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833335125288 + 5833335125289.

It is an arithmetic number, because the mean of its divisors is an integer number (5833335125289).

Almost surely, 2^{11666670250577} is an apocalyptic number.

It is an amenable number.

11666670250577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666670250577 is an equidigital number, since it uses as much as digits as its factorization.

11666670250577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22226400, while the sum is 59.

The spelling of 11666670250577 in words is "eleven trillion, six hundred sixty-six billion, six hundred seventy million, two hundred fifty thousand, five hundred seventy-seven".