216243130125 has 192 divisors, whose sum is σ = 438981903360. Its totient is φ = 93474432000.

The previous prime is 216243130093. The next prime is 216243130157. The reversal of 216243130125 is 521031342612.

It is an interprime number because it is at equal distance from previous prime (216243130093) and next prime (216243130157).

It is not a de Polignac number, because 216243130125 - 2⁵ = 216243130093 is a prime.

It is a super-2 number, since 2×216243130125² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216243130092 and 216243130101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 22645602 + ... + 22655148.

It is an arithmetic number, because the mean of its divisors is an integer number (2286364080).

Almost surely, 2^216243130125 is an apocalyptic number.

216243130125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216243130125 is an abundant number, since it is smaller than the sum of its proper divisors (222738773235).

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

216243130125 is a wasteful number, since it uses less digits than its factorization.

216243130125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629 (or 9602 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 216243130125 its reverse (521031342612), we get a palindrome (737274472737).

The spelling of 216243130125 in words is "two hundred sixteen billion, two hundred forty-three million, one hundred thirty thousand, one hundred twenty-five".