215343240416 has 48 divisors (see below), whose sum is σ = 435091089888. Its totient is φ = 104878195200.

The previous prime is 215343240407. The next prime is 215343240457. The reversal of 215343240416 is 614042343512.

It is a super-2 number, since 2×215343240416² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334475 + ... + 736586.

It is an arithmetic number, because the mean of its divisors is an integer number (9064397706).

Almost surely, 2^215343240416 is an apocalyptic number.

It is an amenable number.

215343240416 is an abundant number, since it is smaller than the sum of its proper divisors (219747849472).

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

215343240416 is a wasteful number, since it uses less digits than its factorization.

215343240416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071235 (or 1071227 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 215343240416 its reverse (614042343512), we get a palindrome (829385583928).

The spelling of 215343240416 in words is "two hundred fifteen billion, three hundred forty-three million, two hundred forty thousand, four hundred sixteen".