216970225206 has 32 divisors (see below), whose sum is σ = 498671916288. Its totient is φ = 61648996320.

The previous prime is 216970225169. The next prime is 216970225207. The reversal of 216970225206 is 602522079612.

216970225206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216970225207) 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 15 ways as a sum of consecutive naturals, for example, 14263000 + ... + 14278203.

It is an arithmetic number, because the mean of its divisors is an integer number (15583497384).

Almost surely, 2^216970225206 is an apocalyptic number.

216970225206 is an abundant number, since it is smaller than the sum of its proper divisors (281701691082).

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

216970225206 is a wasteful number, since it uses less digits than its factorization.

216970225206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28541396.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 216970225206 in words is "two hundred sixteen billion, nine hundred seventy million, two hundred twenty-five thousand, two hundred six".