66527467631 has 2 divisors, whose sum is σ = 66527467632. Its totient is φ = 66527467630.

The previous prime is 66527467619. The next prime is 66527467637. The reversal of 66527467631 is 13676472566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66527467631 - 2¹⁸ = 66527205487 is a prime.

It is a super-3 number, since 3×66527467631³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66527467637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33263733815 + 33263733816.

It is an arithmetic number, because the mean of its divisors is an integer number (33263733816).

Almost surely, 2^66527467631 is an apocalyptic number.

66527467631 is a deficient number, since it is larger than the sum of its proper divisors (1).

66527467631 is an equidigital number, since it uses as much as digits as its factorization.

66527467631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 53.

The spelling of 66527467631 in words is "sixty-six billion, five hundred twenty-seven million, four hundred sixty-seven thousand, six hundred thirty-one".