11011101000161 has 2 divisors, whose sum is σ = 11011101000162. Its totient is φ = 11011101000160.

The previous prime is 11011101000143. The next prime is 11011101000187. The reversal of 11011101000161 is 16100010111011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10952333543761 + 58767456400 = 3309431^2 + 242420^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011101000161 - 2²² = 11011096805857 is a prime.

It is a super-4 number, since 4×11011101000161⁴ (a number of 53 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (11011101030161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505550500080 + 5505550500081.

It is an arithmetic number, because the mean of its divisors is an integer number (5505550500081).

Almost surely, 2^{11011101000161} is an apocalyptic number.

It is an amenable number.

11011101000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011101000161 is an equidigital number, since it uses as much as digits as its factorization.

11011101000161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 11011101000161 its reverse (16100010111011), we get a palindrome (27111111111172).

The spelling of 11011101000161 in words is "eleven trillion, eleven billion, one hundred one million, one hundred sixty-one", and thus it is an aban number.