215022550544000 has 128 divisors (see below), whose sum is σ = 539892887835600. Its totient is φ = 85157445120000.

The previous prime is 215022550543987. The next prime is 215022550544047. The reversal of 215022550544000 is 445055220512.

It can be written as a sum of positive squares in 8 ways, for example, as 21052753835584 + 193969796708416 = 4588328^2 + 13927304^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64913255 + ... + 68145254.

Almost surely, 2^{215022550544000} is an apocalyptic number.

215022550544000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215022550544000 is an abundant number, since it is smaller than the sum of its proper divisors (324870337291600).

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

215022550544000 is a wasteful number, since it uses less digits than its factorization.

215022550544000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133058639 (or 133058617 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 215022550544000 in words is "two hundred fifteen trillion, twenty-two billion, five hundred fifty million, five hundred forty-four thousand".