531663066666204 has 48 divisors (see below), whose sum is σ = 1353326745447936. Its totient is φ = 161109713564800.

The previous prime is 531663066666181. The next prime is 531663066666271. The reversal of 531663066666204 is 402666660366135.

It is a super-3 number, since 3×531663066666204³ (a number of 45 digits) contains 333 as substring.

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, 71348464 + ... + 78446984.

It is an arithmetic number, because the mean of its divisors is an integer number (28194307196832).

Almost surely, 2^{531663066666204} is an apocalyptic number.

It is an amenable number.

531663066666204 is an abundant number, since it is smaller than the sum of its proper divisors (821663678781732).

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

531663066666204 is a wasteful number, since it uses less digits than its factorization.

531663066666204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665946 (or 7665944 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 60.

The spelling of 531663066666204 in words is "five hundred thirty-one trillion, six hundred sixty-three billion, sixty-six million, six hundred sixty-six thousand, two hundred four".