216201708 has 18 divisors (see below), whose sum is σ = 546509964. Its totient is φ = 72067224.

The previous prime is 216201653. The next prime is 216201709. The reversal of 216201708 is 807102612.

216201708 is a `hidden beast` number, since 21 + 620 + 17 + 0 + 8 = 666.

216201708 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (216201709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3002766 + ... + 3002837.

Almost surely, 2^216201708 is an apocalyptic number.

It is an amenable number.

216201708 is an abundant number, since it is smaller than the sum of its proper divisors (330308256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216201708 is a wasteful number, since it uses less digits than its factorization.

216201708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005613 (or 6005608 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 216201708 is about 14703.7991009127. The cubic root of 216201708 is about 600.1867085605.

The spelling of 216201708 in words is "two hundred sixteen million, two hundred one thousand, seven hundred eight".