216732212232170 has 32 divisors (see below), whose sum is σ = 403668068907600. Its totient is φ = 83683202512896.

The previous prime is 216732212232167. The next prime is 216732212232181. The reversal of 216732212232170 is 71232212237612.

It can be written as a sum of positive squares in 8 ways, for example, as 153507466174969 + 63224746057201 = 12389813^2 + 7951399^2 .

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, 89303009 + ... + 91697828.

Almost surely, 2^{216732212232170} is an apocalyptic number.

216732212232170 is a deficient number, since it is larger than the sum of its proper divisors (186935856675430).

216732212232170 is a wasteful number, since it uses less digits than its factorization.

216732212232170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181005002.

The product of its (nonzero) digits is 169344, while the sum is 41.

Adding to 216732212232170 its reverse (71232212237612), we get a palindrome (287964424469782).

The spelling of 216732212232170 in words is "two hundred sixteen trillion, seven hundred thirty-two billion, two hundred twelve million, two hundred thirty-two thousand, one hundred seventy".