16163223602225 has 48 divisors (see below), whose sum is σ = 23284445712000. Its totient is φ = 10900091635200.

The previous prime is 16163223602179. The next prime is 16163223602237. The reversal of 16163223602225 is 52220632236161.

It is not a de Polignac number, because 16163223602225 - 2¹⁰ = 16163223601201 is a prime.

It is a super-2 number, since 2×16163223602225² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76680026 + ... + 76890524.

It is an arithmetic number, because the mean of its divisors is an integer number (485092619000).

Almost surely, 2^{16163223602225} is an apocalyptic number.

It is an amenable number.

16163223602225 is a deficient number, since it is larger than the sum of its proper divisors (7121222109775).

16163223602225 is a wasteful number, since it uses less digits than its factorization.

16163223602225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217770 (or 217765 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 16163223602225 its reverse (52220632236161), we get a palindrome (68383855838386).

The spelling of 16163223602225 in words is "sixteen trillion, one hundred sixty-three billion, two hundred twenty-three million, six hundred two thousand, two hundred twenty-five".