215532452344 has 32 divisors (see below), whose sum is σ = 441297221040. Its totient is φ = 97872544000.

The previous prime is 215532452309. The next prime is 215532452413. The reversal of 215532452344 is 443254235512.

It is a junction number, because it is equal to n+sod(n) for n = 215532452297 and 215532452306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119757 + ... + 1298044.

Almost surely, 2^215532452344 is an apocalyptic number.

It is an amenable number.

215532452344 is an abundant number, since it is smaller than the sum of its proper divisors (225764768696).

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

215532452344 is a wasteful number, since it uses less digits than its factorization.

215532452344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418831 (or 2418827 counting only the distinct ones).

The product of its digits is 576000, while the sum is 40.

Adding to 215532452344 its reverse (443254235512), we get a palindrome (658786687856).

The spelling of 215532452344 in words is "two hundred fifteen billion, five hundred thirty-two million, four hundred fifty-two thousand, three hundred forty-four".