216903442206 has 32 divisors (see below), whose sum is σ = 473324974848. Its totient is φ = 65717051840.

The previous prime is 216903442193. The next prime is 216903442229. The reversal of 216903442206 is 602244309612.

It is a congruent number.

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, 110551 + ... + 667853.

It is an arithmetic number, because the mean of its divisors is an integer number (14791405464).

Almost surely, 2^216903442206 is an apocalyptic number.

216903442206 is an abundant number, since it is smaller than the sum of its proper divisors (256421532642).

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

216903442206 is a wasteful number, since it uses less digits than its factorization.

216903442206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563216.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 216903442206 in words is "two hundred sixteen billion, nine hundred three million, four hundred forty-two thousand, two hundred six".