215305315152 has 40 divisors (see below), whose sum is σ = 559617720864. Its totient is φ = 71328138624.

The previous prime is 215305315087. The next prime is 215305315193. The reversal of 215305315152 is 251513503512.

It is a happy number.

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, 13751463 + ... + 13767110.

Almost surely, 2^215305315152 is an apocalyptic number.

It is an amenable number.

215305315152 is an abundant number, since it is smaller than the sum of its proper divisors (344312405712).

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

215305315152 is a wasteful number, since it uses less digits than its factorization.

215305315152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27518747 (or 27518741 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 215305315152 its reverse (251513503512), we get a palindrome (466818818664).

The spelling of 215305315152 in words is "two hundred fifteen billion, three hundred five million, three hundred fifteen thousand, one hundred fifty-two".