18536816320230 has 96 divisors (see below), whose sum is σ = 48184271241120. Its totient is φ = 4561915438080.

The previous prime is 18536816320193. The next prime is 18536816320241. The reversal of 18536816320230 is 3202361863581.

It is a happy number.

It is a super-2 number, since 2×18536816320230² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18536816320230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23032866 + ... + 23824074.

It is an arithmetic number, because the mean of its divisors is an integer number (501919492095).

Almost surely, 2^{18536816320230} is an apocalyptic number.

18536816320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18536816320230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24092135620560).

18536816320230 is an abundant number, since it is smaller than the sum of its proper divisors (29647454920890).

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

18536816320230 is a wasteful number, since it uses less digits than its factorization.

18536816320230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795866 (or 795853 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 18536816320230 in words is "eighteen trillion, five hundred thirty-six billion, eight hundred sixteen million, three hundred twenty thousand, two hundred thirty".