215185130688 has 448 divisors, whose sum is σ = 671156140032. Its totient is φ = 60124446720.

The previous prime is 215185130669. The next prime is 215185130717. The reversal of 215185130688 is 886031581512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 485744995 + ... + 485745437.

It is an arithmetic number, because the mean of its divisors is an integer number (1498116384).

Almost surely, 2^215185130688 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 215185130688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335578070016).

215185130688 is an abundant number, since it is smaller than the sum of its proper divisors (455971009344).

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

215185130688 is a wasteful number, since it uses less digits than its factorization.

215185130688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 48.

The spelling of 215185130688 in words is "two hundred fifteen billion, one hundred eighty-five million, one hundred thirty thousand, six hundred eighty-eight".