523304613525664 has 48 divisors (see below), whose sum is σ = 1052974008979200. Its totient is φ = 255891084385024.

The previous prime is 523304613525641. The next prime is 523304613525689. The reversal of 523304613525664 is 466525316403325.

It is a super-2 number, since 2×523304613525664² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129912319 + ... + 133879870.

It is an arithmetic number, because the mean of its divisors is an integer number (21936958520400).

Almost surely, 2^{523304613525664} is an apocalyptic number.

It is an amenable number.

523304613525664 is an abundant number, since it is smaller than the sum of its proper divisors (529669395453536).

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

523304613525664 is a wasteful number, since it uses less digits than its factorization.

523304613525664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263793565 (or 263793557 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 55.

Adding to 523304613525664 its reverse (466525316403325), we get a palindrome (989829929928989).

The spelling of 523304613525664 in words is "five hundred twenty-three trillion, three hundred four billion, six hundred thirteen million, five hundred twenty-five thousand, six hundred sixty-four".