215228203941888 has 1440 divisors, whose sum is σ = 680279912632320. Its totient is φ = 65432384962560.

The previous prime is 215228203941887. The next prime is 215228203941901. The reversal of 215228203941888 is 888149302822512.

215228203941888 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 2 + 8 + 203 + 9 + 418 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (215228203941887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 776997126006 + ... + 776997126282.

Almost surely, 2^{215228203941888} 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 215228203941888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340139956316160).

215228203941888 is an abundant number, since it is smaller than the sum of its proper divisors (465051708690432).

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

215228203941888 is a wasteful number, since it uses less digits than its factorization.

215228203941888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 215228203941888 in words is "two hundred fifteen trillion, two hundred twenty-eight billion, two hundred three million, nine hundred forty-one thousand, eight hundred eighty-eight".