11766967156121 has 2 divisors, whose sum is σ = 11766967156122. Its totient is φ = 11766967156120.

The previous prime is 11766967156001. The next prime is 11766967156187. The reversal of 11766967156121 is 12165176966711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11766958090000 + 9066121 = 3430300^2 + 3011^2 .

It is a cyclic number.

It is not a de Polignac number, because 11766967156121 - 2³⁸ = 11492089249177 is a prime.

It is not a weakly prime, because it can be changed into another prime (11766967156921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5883483578060 + 5883483578061.

It is an arithmetic number, because the mean of its divisors is an integer number (5883483578061).

Almost surely, 2^{11766967156121} is an apocalyptic number.

It is an amenable number.

11766967156121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11766967156121 is an equidigital number, since it uses as much as digits as its factorization.

11766967156121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 59.

The spelling of 11766967156121 in words is "eleven trillion, seven hundred sixty-six billion, nine hundred sixty-seven million, one hundred fifty-six thousand, one hundred twenty-one".