323303021603664 has 160 divisors (see below), whose sum is σ = 881834458327680. Its totient is φ = 101785070002176.

The previous prime is 323303021603663. The next prime is 323303021603699. The reversal of 323303021603664 is 466306120303323.

It is a super-2 number, since 2×323303021603664² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323303021603663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692395044 + ... + 692861820.

It is an arithmetic number, because the mean of its divisors is an integer number (5511465364548).

Almost surely, 2^{323303021603664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323303021603664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440917229163840).

323303021603664 is an abundant number, since it is smaller than the sum of its proper divisors (558531436724016).

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

323303021603664 is a wasteful number, since it uses less digits than its factorization.

323303021603664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469117 (or 469111 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 42.

Adding to 323303021603664 its reverse (466306120303323), we get a palindrome (789609141906987).

The spelling of 323303021603664 in words is "three hundred twenty-three trillion, three hundred three billion, twenty-one million, six hundred three thousand, six hundred sixty-four".