215394303168 has 1120 divisors, whose sum is σ = 777506273280. Its totient is φ = 58711910400.

The previous prime is 215394303151. The next prime is 215394303191. The reversal of 215394303168 is 861303493512.

215394303168 is a `hidden beast` number, since 2 + 1 + 53 + 9 + 430 + 3 + 168 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4064043430 + ... + 4064043482.

Almost surely, 2^215394303168 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 215394303168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388753136640).

215394303168 is an abundant number, since it is smaller than the sum of its proper divisors (562111970112).

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

215394303168 is a wasteful number, since it uses less digits than its factorization.

215394303168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 215394303168 in words is "two hundred fifteen billion, three hundred ninety-four million, three hundred three thousand, one hundred sixty-eight".