17666666411 has 2 divisors, whose sum is σ = 17666666412. Its totient is φ = 17666666410.

The previous prime is 17666666387. The next prime is 17666666483. The reversal of 17666666411 is 11466666671.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17666666411 is a prime.

It is a super-2 number, since 2×17666666411² (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 17666666411.

It is not a weakly prime, because it can be changed into another prime (17666660411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8833333205 + 8833333206.

It is an arithmetic number, because the mean of its divisors is an integer number (8833333206).

Almost surely, 2^17666666411 is an apocalyptic number.

17666666411 is a deficient number, since it is larger than the sum of its proper divisors (1).

17666666411 is an equidigital number, since it uses as much as digits as its factorization.

17666666411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The spelling of 17666666411 in words is "seventeen billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred eleven".