215715611216 has 40 divisors (see below), whose sum is σ = 486668386944. Its totient is φ = 90705214080.

The previous prime is 215715611207. The next prime is 215715611233. The reversal of 215715611216 is 612116517512.

It is a self number, because there is not a number n which added to its sum of digits gives 215715611216.

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, 18164180 + ... + 18176051.

Almost surely, 2^215715611216 is an apocalyptic number.

It is an amenable number.

215715611216 is an abundant number, since it is smaller than the sum of its proper divisors (270952775728).

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

215715611216 is a wasteful number, since it uses less digits than its factorization.

215715611216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36340299 (or 36340293 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The spelling of 215715611216 in words is "two hundred fifteen billion, seven hundred fifteen million, six hundred eleven thousand, two hundred sixteen".