56111933058161 has 2 divisors, whose sum is σ = 56111933058162. Its totient is φ = 56111933058160.

The previous prime is 56111933058151. The next prime is 56111933058163. The reversal of 56111933058161 is 16185033911165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48224260808161 + 7887672250000 = 6944369^2 + 2808500^2 .

It is a cyclic number.

It is not a de Polignac number, because 56111933058161 - 2¹⁴ = 56111933041777 is a prime.

It is a super-3 number, since 3×56111933058161³ (a number of 42 digits) contains 333 as substring.

Together with 56111933058163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56111933058163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28055966529080 + 28055966529081.

It is an arithmetic number, because the mean of its divisors is an integer number (28055966529081).

Almost surely, 2^{56111933058161} is an apocalyptic number.

It is an amenable number.

56111933058161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56111933058161 is an equidigital number, since it uses as much as digits as its factorization.

56111933058161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 50.

The spelling of 56111933058161 in words is "fifty-six trillion, one hundred eleven billion, nine hundred thirty-three million, fifty-eight thousand, one hundred sixty-one".