213600660030 has 192 divisors, whose sum is σ = 580269381120. Its totient is φ = 54469271808.

The previous prime is 213600659999. The next prime is 213600660041. The reversal of 213600660030 is 30066006312.

213600660030 is a `hidden beast` number, since 21 + 3 + 6 + 0 + 0 + 6 + 600 + 30 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213600659976 and 213600660003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60049012 + ... + 60052568.

It is an arithmetic number, because the mean of its divisors is an integer number (3022236360).

Almost surely, 2^213600660030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213600660030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290134690560).

213600660030 is an abundant number, since it is smaller than the sum of its proper divisors (366668721090).

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

213600660030 is a wasteful number, since it uses less digits than its factorization.

213600660030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 213600660030 its reverse (30066006312), we get a palindrome (243666666342).

The spelling of 213600660030 in words is "two hundred thirteen billion, six hundred million, six hundred sixty thousand, thirty".