265141342701161 has 2 divisors, whose sum is σ = 265141342701162. Its totient is φ = 265141342701160.

The previous prime is 265141342701127. The next prime is 265141342701163. The reversal of 265141342701161 is 161107243141562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264986925139561 + 154417561600 = 16278419^2 + 392960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265141342701161 is a prime.

Together with 265141342701163, 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 (265141342701163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132570671350580 + 132570671350581.

It is an arithmetic number, because the mean of its divisors is an integer number (132570671350581).

Almost surely, 2^{265141342701161} is an apocalyptic number.

It is an amenable number.

265141342701161 is a deficient number, since it is larger than the sum of its proper divisors (1).

265141342701161 is an equidigital number, since it uses as much as digits as its factorization.

265141342701161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 265141342701161 in words is "two hundred sixty-five trillion, one hundred forty-one billion, three hundred forty-two million, seven hundred one thousand, one hundred sixty-one".