215228448306432 has 216 divisors, whose sum is σ = 687074968550880. Its totient is φ = 64247297495040.

The previous prime is 215228448306413. The next prime is 215228448306439. The reversal of 215228448306432 is 234603844822512.

215228448306432 is a `hidden beast` number, since 2 + 1 + 5 + 22 + 84 + 483 + 0 + 64 + 3 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215228448306439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61677207 + ... + 65073302.

It is an arithmetic number, because the mean of its divisors is an integer number (3180902632180).

Almost surely, 2^{215228448306432} is an apocalyptic number.

215228448306432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215228448306432 is an abundant number, since it is smaller than the sum of its proper divisors (471846520244448).

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

215228448306432 is a wasteful number, since it uses less digits than its factorization.

215228448306432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126750609 (or 126750592 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 54.

The spelling of 215228448306432 in words is "two hundred fifteen trillion, two hundred twenty-eight billion, four hundred forty-eight million, three hundred six thousand, four hundred thirty-two".