216545658200 has 24 divisors (see below), whose sum is σ = 503468655780. Its totient is φ = 86618263200.

The previous prime is 216545658143. The next prime is 216545658269. The reversal of 216545658200 is 2856545612.

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 5 ways as a sum of consecutive naturals, for example, 541363946 + ... + 541364345.

Almost surely, 2^216545658200 is an apocalyptic number.

216545658200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216545658200 is an abundant number, since it is smaller than the sum of its proper divisors (286922997580).

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

216545658200 is a wasteful number, since it uses less digits than its factorization.

216545658200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082728307 (or 1082728298 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 216545658200 in words is "two hundred sixteen billion, five hundred forty-five million, six hundred fifty-eight thousand, two hundred".