216020612 has 6 divisors (see below), whose sum is σ = 378036078. Its totient is φ = 108010304.

The previous prime is 216020611. The next prime is 216020621.

It is a happy number.

216020612 is nontrivially palindromic in base 10.

216020612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 185395456 + 30625156 = 13616^2 + 5534^2 .

It is not an unprimeable number, because it can be changed into a prime (216020611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27002573 + ... + 27002580.

It is an arithmetic number, because the mean of its divisors is an integer number (63006013).

Almost surely, 2^216020612 is an apocalyptic number.

It is an amenable number.

216020612 is a deficient number, since it is larger than the sum of its proper divisors (162015466).

216020612 is a wasteful number, since it uses less digits than its factorization.

216020612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54005157 (or 54005155 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 216020612 is about 14697.6396744511. The cubic root of 216020612 is about 600.0190845781.

The spelling of 216020612 in words is "two hundred sixteen million, twenty thousand, six hundred twelve".