11733728161 has 2 divisors, whose sum is σ = 11733728162. Its totient is φ = 11733728160.

The previous prime is 11733728101. The next prime is 11733728189. The reversal of 11733728161 is 16182733711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10979896225 + 753831936 = 104785^2 + 27456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11733728161 is a prime.

It is not a weakly prime, because it can be changed into another prime (11733728101) 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, 5866864080 + 5866864081.

It is an arithmetic number, because the mean of its divisors is an integer number (5866864081).

Almost surely, 2^11733728161 is an apocalyptic number.

It is an amenable number.

11733728161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11733728161 is an equidigital number, since it uses as much as digits as its factorization.

11733728161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The spelling of 11733728161 in words is "eleven billion, seven hundred thirty-three million, seven hundred twenty-eight thousand, one hundred sixty-one".