531697652663 has 2 divisors, whose sum is σ = 531697652664. Its totient is φ = 531697652662.

The previous prime is 531697652609. The next prime is 531697652683. The reversal of 531697652663 is 366256796135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531697652663 - 2¹² = 531697648567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531697652683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265848826331 + 265848826332.

It is an arithmetic number, because the mean of its divisors is an integer number (265848826332).

Almost surely, 2^531697652663 is an apocalyptic number.

531697652663 is a deficient number, since it is larger than the sum of its proper divisors (1).

531697652663 is an equidigital number, since it uses as much as digits as its factorization.

531697652663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 59.

The spelling of 531697652663 in words is "five hundred thirty-one billion, six hundred ninety-seven million, six hundred fifty-two thousand, six hundred sixty-three".