11660211677 has 2 divisors, whose sum is σ = 11660211678. Its totient is φ = 11660211676.

The previous prime is 11660211611. The next prime is 11660211697. The reversal of 11660211677 is 77611206611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11591967556 + 68244121 = 107666^2 + 8261^2 .

It is an emirp because it is prime and its reverse (77611206611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11660211677 - 2²⁶ = 11593102813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11660211677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660211697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830105838 + 5830105839.

It is an arithmetic number, because the mean of its divisors is an integer number (5830105839).

Almost surely, 2^11660211677 is an apocalyptic number.

It is an amenable number.

11660211677 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660211677 is an equidigital number, since it uses as much as digits as its factorization.

11660211677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 11660211677 in words is "eleven billion, six hundred sixty million, two hundred eleven thousand, six hundred seventy-seven".