216350022166 has 4 divisors (see below), whose sum is σ = 324525033252. Its totient is φ = 108175011082.

The previous prime is 216350022143. The next prime is 216350022191. The reversal of 216350022166 is 661220053612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54087505540 + ... + 54087505543.

It is an arithmetic number, because the mean of its divisors is an integer number (81131258313).

Almost surely, 2^216350022166 is an apocalyptic number.

216350022166 is a deficient number, since it is larger than the sum of its proper divisors (108175011086).

216350022166 is a wasteful number, since it uses less digits than its factorization.

216350022166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108175011085.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 216350022166 its reverse (661220053612), we get a palindrome (877570075778).

The spelling of 216350022166 in words is "two hundred sixteen billion, three hundred fifty million, twenty-two thousand, one hundred sixty-six".