100216066 has 4 divisors (see below), whose sum is σ = 150324102. Its totient is φ = 50108032.

The previous prime is 100216021. The next prime is 100216073. The reversal of 100216066 is 660612001.

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

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 32729841 = 8215^2 + 5721^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25054015 + ... + 25054018.

Almost surely, 2^100216066 is an apocalyptic number.

100216066 is a deficient number, since it is larger than the sum of its proper divisors (50108036).

100216066 is an equidigital number, since it uses as much as digits as its factorization.

100216066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50108035.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 100216066 is about 10010.7974707313. The cubic root of 100216066 is about 464.4929393938.

Adding to 100216066 its reverse (660612001), we get a palindrome (760828067).

The spelling of 100216066 in words is "one hundred million, two hundred sixteen thousand, sixty-six".