526560664520197 has 2 divisors, whose sum is σ = 526560664520198. Its totient is φ = 526560664520196.

The previous prime is 526560664520159. The next prime is 526560664520213. The reversal of 526560664520197 is 791025466065625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512615152692036 + 13945511828161 = 22641006^2 + 3734369^2 .

It is a cyclic number.

It is not a de Polignac number, because 526560664520197 - 2³¹ = 526558517036549 is a prime.

It is a super-2 number, since 2×526560664520197² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526560664524197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263280332260098 + 263280332260099.

It is an arithmetic number, because the mean of its divisors is an integer number (263280332260099).

Almost surely, 2^{526560664520197} is an apocalyptic number.

It is an amenable number.

526560664520197 is a deficient number, since it is larger than the sum of its proper divisors (1).

526560664520197 is an equidigital number, since it uses as much as digits as its factorization.

526560664520197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296000, while the sum is 64.

The spelling of 526560664520197 in words is "five hundred twenty-six trillion, five hundred sixty billion, six hundred sixty-four million, five hundred twenty thousand, one hundred ninety-seven".