168069447225 has 18 divisors (see below), whose sum is σ = 301031054766. Its totient is φ = 89637038400.

The previous prime is 168069447209. The next prime is 168069447229. The reversal of 168069447225 is 522744960861.

168069447225 is a `hidden beast` number, since 1 + 6 + 80 + 6 + 94 + 472 + 2 + 5 = 666.

168069447225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 47447294976 + 120622152249 = 217824^2 + 347307^2 .

It is not a de Polignac number, because 168069447225 - 2⁴ = 168069447209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168069447229) 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 17 ways as a sum of consecutive naturals, for example, 373487436 + ... + 373487885.

It is an arithmetic number, because the mean of its divisors is an integer number (16723947487).

Almost surely, 2^168069447225 is an apocalyptic number.

168069447225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168069447225 is a deficient number, since it is larger than the sum of its proper divisors (132961607541).

168069447225 is a wasteful number, since it uses less digits than its factorization.

168069447225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746975337 (or 746975329 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 168069447225 in words is "one hundred sixty-eight billion, sixty-nine million, four hundred forty-seven thousand, two hundred twenty-five".