215832017212 has 48 divisors (see below), whose sum is σ = 434713245120. Its totient is φ = 91847895552.

The previous prime is 215832017209. The next prime is 215832017249. The reversal of 215832017212 is 212710238512.

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 15 ways as a sum of consecutive naturals, for example, 2769208 + ... + 2846080.

It is an arithmetic number, because the mean of its divisors is an integer number (9056525940).

Almost surely, 2^215832017212 is an apocalyptic number.

It is an amenable number.

215832017212 is an abundant number, since it is smaller than the sum of its proper divisors (218881227908).

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

215832017212 is a wasteful number, since it uses less digits than its factorization.

215832017212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77590 (or 77588 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 215832017212 in words is "two hundred fifteen billion, eight hundred thirty-two million, seventeen thousand, two hundred twelve".