216601010 has 8 divisors (see below), whose sum is σ = 389881836. Its totient is φ = 86640400.

The previous prime is 216600947. The next prime is 216601031. The reversal of 216601010 is 10106612.

It is a happy number.

216601010 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 2 ways, for example, as 216413521 + 187489 = 14711^2 + 433^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 216601010.

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 in 3 ways as a sum of consecutive naturals, for example, 10830041 + ... + 10830060.

Almost surely, 2^216601010 is an apocalyptic number.

216601010 is a deficient number, since it is larger than the sum of its proper divisors (173280826).

216601010 is a wasteful number, since it uses less digits than its factorization.

216601010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660108.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 216601010 is about 14717.3710288217. The cubic root of 216601010 is about 600.5559754005. Note that the first 3 decimals are identical.

Adding to 216601010 its reverse (10106612), we get a palindrome (226707622).

The spelling of 216601010 in words is "two hundred sixteen million, six hundred one thousand, ten".