216663343350 has 72 divisors (see below), whose sum is σ = 570791820408. Its totient is φ = 54378240000.

The previous prime is 216663343327. The next prime is 216663343381. The reversal of 216663343350 is 53343366612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2455651 + ... + 2542350.

Almost surely, 2^216663343350 is an apocalyptic number.

216663343350 is an abundant number, since it is smaller than the sum of its proper divisors (354128477058).

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

216663343350 is a wasteful number, since it uses less digits than its factorization.

216663343350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998050 (or 4998028 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 216663343350 in words is "two hundred sixteen billion, six hundred sixty-three million, three hundred forty-three thousand, three hundred fifty".