163530216500 has 576 divisors, whose sum is σ = 466874204160. Its totient is φ = 48858163200.

The previous prime is 163530216379. The next prime is 163530216527. The reversal of 163530216500 is 5612035361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1287639437 + ... + 1287639563.

Almost surely, 2^163530216500 is an apocalyptic number.

163530216500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163530216500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233437102080).

163530216500 is an abundant number, since it is smaller than the sum of its proper divisors (303343987660).

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

163530216500 is a wasteful number, since it uses less digits than its factorization.

163530216500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 163530216500 in words is "one hundred sixty-three billion, five hundred thirty million, two hundred sixteen thousand, five hundred".