215065350416 has 30 divisors (see below), whose sum is σ = 484719994350. Its totient is φ = 92170864128.

The previous prime is 215065350413. The next prime is 215065350421. The reversal of 215065350416 is 614053560512.

It can be written as a sum of positive squares in only one way, i.e., 156309529600 + 58755820816 = 395360^2 + 242396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 215065350416.

It is not an unprimeable number, because it can be changed into a prime (215065350413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137158241 + ... + 137159808.

It is an arithmetic number, because the mean of its divisors is an integer number (16157333145).

Almost surely, 2^215065350416 is an apocalyptic number.

It is an amenable number.

215065350416 is an abundant number, since it is smaller than the sum of its proper divisors (269654643934).

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

215065350416 is a wasteful number, since it uses less digits than its factorization.

215065350416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274318071 (or 274318058 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 215065350416 in words is "two hundred fifteen billion, sixty-five million, three hundred fifty thousand, four hundred sixteen".