216720717202 has 32 divisors (see below), whose sum is σ = 355880770560. Its totient is φ = 98163471120.

The previous prime is 216720717151. The next prime is 216720717209. The reversal of 216720717202 is 202717027612.

216720717202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216720717209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11703483 + ... + 11721985.

It is an arithmetic number, because the mean of its divisors is an integer number (11121274080).

Almost surely, 2^216720717202 is an apocalyptic number.

216720717202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216720717202 is a deficient number, since it is larger than the sum of its proper divisors (139160053358).

216720717202 is a wasteful number, since it uses less digits than its factorization.

216720717202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20358.

The product of its (nonzero) digits is 32928, while the sum is 37.

The spelling of 216720717202 in words is "two hundred sixteen billion, seven hundred twenty million, seven hundred seventeen thousand, two hundred two".