216777196 has 12 divisors (see below), whose sum is σ = 380508520. Its totient is φ = 108060480.

The previous prime is 216777193. The next prime is 216777221. The reversal of 216777196 is 691777612.

It is not an unprimeable number, because it can be changed into a prime (216777193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80541 + ... + 83188.

Almost surely, 2^216777196 is an apocalyptic number.

It is an amenable number.

216777196 is a deficient number, since it is larger than the sum of its proper divisors (163731324).

216777196 is a wasteful number, since it uses less digits than its factorization.

216777196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164064 (or 164062 counting only the distinct ones).

The product of its digits is 222264, while the sum is 46.

The square root of 216777196 is about 14723.3554599487. The cubic root of 216777196 is about 600.7187645447.

The spelling of 216777196 in words is "two hundred sixteen million, seven hundred seventy-seven thousand, one hundred ninety-six".