216020494682 has 8 divisors (see below), whose sum is σ = 324044915796. Its totient is φ = 108005522752.

The previous prime is 216020494681. The next prime is 216020494721. The reversal of 216020494682 is 286494020612.

It is a happy number.

216020494682 is digitally balanced in base 2, 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 2 ways, for example, as 203364019681 + 12656475001 = 450959^2 + 112501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×216020494682² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216020494681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304863 + ... + 2396754.

Almost surely, 2^216020494682 is an apocalyptic number.

216020494682 is a deficient number, since it is larger than the sum of its proper divisors (108024421114).

216020494682 is a wasteful number, since it uses less digits than its factorization.

216020494682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724592.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 216020494682 in words is "two hundred sixteen billion, twenty million, four hundred ninety-four thousand, six hundred eighty-two".