163210203225 has 36 divisors (see below), whose sum is σ = 293796672000. Its totient is φ = 86608003680.

The previous prime is 163210203199. The next prime is 163210203259. The reversal of 163210203225 is 522302012361.

It is a happy number.

163210203225 is a `hidden beast` number, since 1 + 632 + 1 + 0 + 2 + 0 + 3 + 2 + 25 = 666.

It is not a de Polignac number, because 163210203225 - 2¹¹ = 163210201177 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1777785 + ... + 1867334.

Almost surely, 2^163210203225 is an apocalyptic number.

163210203225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163210203225 is a deficient number, since it is larger than the sum of its proper divisors (130586468775).

163210203225 is a wasteful number, since it uses less digits than its factorization.

163210203225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645334 (or 3645326 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 163210203225 its reverse (522302012361), we get a palindrome (685512215586).

The spelling of 163210203225 in words is "one hundred sixty-three billion, two hundred ten million, two hundred three thousand, two hundred twenty-five".