163521003324 has 48 divisors (see below), whose sum is σ = 459006329600. Its totient is φ = 44261323776.

The previous prime is 163521003313. The next prime is 163521003341. The reversal of 163521003324 is 423300125361.

It is a junction number, because it is equal to n+sod(n) for n = 163521003291 and 163521003300.

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, 51226789 + ... + 51229980.

Almost surely, 2^163521003324 is an apocalyptic number.

163521003324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163521003324 is an abundant number, since it is smaller than the sum of its proper divisors (295485326276).

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

163521003324 is a wasteful number, since it uses less digits than its factorization.

163521003324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102456802 (or 102456800 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 163521003324 its reverse (423300125361), we get a palindrome (586821128685).

The spelling of 163521003324 in words is "one hundred sixty-three billion, five hundred twenty-one million, three thousand, three hundred twenty-four".