531213335360664 has 64 divisors (see below), whose sum is σ = 1450903618218240. Its totient is φ = 160735962840960.

The previous prime is 531213335360563. The next prime is 531213335360677. The reversal of 531213335360664 is 466063533312135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485915604 + ... + 1486273059.

It is an arithmetic number, because the mean of its divisors is an integer number (22670369034660).

Almost surely, 2^{531213335360664} is an apocalyptic number.

It is an amenable number.

531213335360664 is an abundant number, since it is smaller than the sum of its proper divisors (919690282857576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531213335360664 is a wasteful number, since it uses less digits than its factorization.

531213335360664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972189360 (or 2972189356 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 51.

Adding to 531213335360664 its reverse (466063533312135), we get a palindrome (997276868672799).

The spelling of 531213335360664 in words is "five hundred thirty-one trillion, two hundred thirteen billion, three hundred thirty-five million, three hundred sixty thousand, six hundred sixty-four".