269397057161 has 2 divisors, whose sum is σ = 269397057162. Its totient is φ = 269397057160.

The previous prime is 269397057157. The next prime is 269397057169. The reversal of 269397057161 is 161750793962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244079473936 + 25317583225 = 494044^2 + 159115^2 .

It is a cyclic number.

It is not a de Polignac number, because 269397057161 - 2² = 269397057157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 269397057097 and 269397057106.

It is not a weakly prime, because it can be changed into another prime (269397057169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134698528580 + 134698528581.

It is an arithmetic number, because the mean of its divisors is an integer number (134698528581).

Almost surely, 2^269397057161 is an apocalyptic number.

It is an amenable number.

269397057161 is a deficient number, since it is larger than the sum of its proper divisors (1).

269397057161 is an equidigital number, since it uses as much as digits as its factorization.

269397057161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 269397057161 in words is "two hundred sixty-nine billion, three hundred ninety-seven million, fifty-seven thousand, one hundred sixty-one".