215488884512 has 144 divisors (see below), whose sum is σ = 498651919416. Its totient is φ = 91272192000.

The previous prime is 215488884473. The next prime is 215488884547.

215488884512 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 197843481616 + 17645402896 = 444796^2 + 132836^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6632018 + ... + 6664430.

Almost surely, 2^215488884512 is an apocalyptic number.

215488884512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215488884512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249325959708).

215488884512 is an abundant number, since it is smaller than the sum of its proper divisors (283163034904).

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

215488884512 is a wasteful number, since it uses less digits than its factorization.

215488884512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32563 (or 32544 counting only the distinct ones).

The product of its digits is 6553600, while the sum is 56.

The spelling of 215488884512 in words is "two hundred fifteen billion, four hundred eighty-eight million, eight hundred eighty-four thousand, five hundred twelve".