11666670250579 has 2 divisors, whose sum is σ = 11666670250580. Its totient is φ = 11666670250578.

The previous prime is 11666670250577. The next prime is 11666670250583. The reversal of 11666670250579 is 97505207666611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97505207666611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11666670250579 - 2¹ = 11666670250577 is a prime.

It is a super-2 number, since 2×11666670250579² (a number of 27 digits) contains 22 as substring.

Together with 11666670250577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11666670250577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833335125289 + 5833335125290.

It is an arithmetic number, because the mean of its divisors is an integer number (5833335125290).

Almost surely, 2^{11666670250579} is an apocalyptic number.

11666670250579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666670250579 is an equidigital number, since it uses as much as digits as its factorization.

11666670250579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 11666670250579 in words is "eleven trillion, six hundred sixty-six billion, six hundred seventy million, two hundred fifty thousand, five hundred seventy-nine".