526616161 has 2 divisors, whose sum is σ = 526616162. Its totient is φ = 526616160.

The previous prime is 526616147. The next prime is 526616173. The reversal of 526616161 is 161616625.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470065761 + 56550400 = 21681^2 + 7520^2 .

It is a cyclic number.

It is not a de Polignac number, because 526616161 - 2¹¹ = 526614113 is a prime.

It is not a weakly prime, because it can be changed into another prime (526616861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263308080 + 263308081.

It is an arithmetic number, because the mean of its divisors is an integer number (263308081).

Almost surely, 2^526616161 is an apocalyptic number.

It is an amenable number.

526616161 is a deficient number, since it is larger than the sum of its proper divisors (1).

526616161 is an equidigital number, since it uses as much as digits as its factorization.

526616161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 526616161 is about 22948.1188989425. The cubic root of 526616161 is about 807.5412720009.

The spelling of 526616161 in words is "five hundred twenty-six million, six hundred sixteen thousand, one hundred sixty-one".