215153330112 has 280 divisors, whose sum is σ = 743775093600. Its totient is φ = 61471872000.

The previous prime is 215153330089. The next prime is 215153330201. The reversal of 215153330112 is 211033351512.

215153330112 is a `hidden beast` number, since 2 + 1 + 515 + 3 + 3 + 30 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1717612 + ... + 1838612.

It is an arithmetic number, because the mean of its divisors is an integer number (2656339620).

Almost surely, 2^215153330112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215153330112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371887546800).

215153330112 is an abundant number, since it is smaller than the sum of its proper divisors (528621763488).

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

215153330112 is an equidigital number, since it uses as much as digits as its factorization.

215153330112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121046 (or 121013 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 215153330112 its reverse (211033351512), we get a palindrome (426186681624).

The spelling of 215153330112 in words is "two hundred fifteen billion, one hundred fifty-three million, three hundred thirty thousand, one hundred twelve".