215330515320 has 32 divisors (see below), whose sum is σ = 645991546320. Its totient is φ = 57421470720.

The previous prime is 215330515319. The next prime is 215330515333. The reversal of 215330515320 is 23515033512.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 897210361 + ... + 897210600.

Almost surely, 2^215330515320 is an apocalyptic number.

215330515320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215330515320 is an abundant number, since it is smaller than the sum of its proper divisors (430661031000).

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

215330515320 is a wasteful number, since it uses less digits than its factorization.

215330515320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794420975 (or 1794420971 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 215330515320 its reverse (23515033512), we get a palindrome (238845548832).

The spelling of 215330515320 in words is "two hundred fifteen billion, three hundred thirty million, five hundred fifteen thousand, three hundred twenty".