215597482128 has 120 divisors (see below), whose sum is σ = 711814012416. Its totient is φ = 59612198400.

The previous prime is 215597482103. The next prime is 215597482151. The reversal of 215597482128 is 821284795512.

It is a happy number.

215597482128 is a `hidden beast` number, since 2 + 1 + 5 + 597 + 4 + 8 + 21 + 28 = 666.

215597482128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3418533 + ... + 3481028.

Almost surely, 2^215597482128 is an apocalyptic number.

215597482128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215597482128 is an abundant number, since it is smaller than the sum of its proper divisors (496216530288).

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

215597482128 is a wasteful number, since it uses less digits than its factorization.

215597482128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899613 (or 6899604 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 215597482128 in words is "two hundred fifteen billion, five hundred ninety-seven million, four hundred eighty-two thousand, one hundred twenty-eight".