217330048668 has 24 divisors (see below), whose sum is σ = 516671437968. Its totient is φ = 71076493696.

The previous prime is 217330048633. The next prime is 217330048693. The reversal of 217330048668 is 866840033712.

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, 170856321 + ... + 170857592.

It is an arithmetic number, because the mean of its divisors is an integer number (21527976582).

Almost surely, 2^217330048668 is an apocalyptic number.

It is an amenable number.

217330048668 is an abundant number, since it is smaller than the sum of its proper divisors (299341389300).

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

217330048668 is a wasteful number, since it uses less digits than its factorization.

217330048668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341713973 (or 341713971 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 217330048668 in words is "two hundred seventeen billion, three hundred thirty million, forty-eight thousand, six hundred sixty-eight".