215496806896 has 40 divisors (see below), whose sum is σ = 477247886720. Its totient is φ = 92340990144.

The previous prime is 215496806887. The next prime is 215496806909. The reversal of 215496806896 is 698608694512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563635 + ... + 865261.

It is an arithmetic number, because the mean of its divisors is an integer number (11931197168).

Almost surely, 2^215496806896 is an apocalyptic number.

It is an amenable number.

215496806896 is an abundant number, since it is smaller than the sum of its proper divisors (261751079824).

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

215496806896 is a wasteful number, since it uses less digits than its factorization.

215496806896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308021 (or 308015 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 64.

The spelling of 215496806896 in words is "two hundred fifteen billion, four hundred ninety-six million, eight hundred six thousand, eight hundred ninety-six".