531166610424631 has 2 divisors, whose sum is σ = 531166610424632. Its totient is φ = 531166610424630.

The previous prime is 531166610424553. The next prime is 531166610424679. The reversal of 531166610424631 is 136424016661135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531166610424631 - 2¹¹ = 531166610422583 is a prime.

It is a super-2 number, since 2×531166610424631² (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 (531166610824631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265583305212315 + 265583305212316.

It is an arithmetic number, because the mean of its divisors is an integer number (265583305212316).

Almost surely, 2^{531166610424631} is an apocalyptic number.

531166610424631 is a deficient number, since it is larger than the sum of its proper divisors (1).

531166610424631 is an equidigital number, since it uses as much as digits as its factorization.

531166610424631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 531166610424631 in words is "five hundred thirty-one trillion, one hundred sixty-six billion, six hundred ten million, four hundred twenty-four thousand, six hundred thirty-one".