216480660315 has 16 divisors (see below), whose sum is σ = 346380802848. Its totient is φ = 115452436736.

The previous prime is 216480660301. The next prime is 216480660343. The reversal of 216480660315 is 513066084612.

It is a cyclic number.

It is not a de Polignac number, because 216480660315 - 2⁶ = 216480660251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243799 + ... + 701711.

It is an arithmetic number, because the mean of its divisors is an integer number (21648800178).

Almost surely, 2^216480660315 is an apocalyptic number.

216480660315 is a deficient number, since it is larger than the sum of its proper divisors (129900142533).

216480660315 is a wasteful number, since it uses less digits than its factorization.

216480660315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489438.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 216480660315 in words is "two hundred sixteen billion, four hundred eighty million, six hundred sixty thousand, three hundred fifteen".