163425145646 has 12 divisors (see below), whose sum is σ = 285160203288. Its totient is φ = 70039348092.

The previous prime is 163425145643. The next prime is 163425145661. The reversal of 163425145646 is 646541524361.

163425145646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163425145646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163425145643) 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 5 ways as a sum of consecutive naturals, for example, 833801666 + ... + 833801861.

It is an arithmetic number, because the mean of its divisors is an integer number (23763350274).

Almost surely, 2^163425145646 is an apocalyptic number.

163425145646 is a deficient number, since it is larger than the sum of its proper divisors (121735057642).

163425145646 is a wasteful number, since it uses less digits than its factorization.

163425145646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667603543 (or 1667603536 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The spelling of 163425145646 in words is "one hundred sixty-three billion, four hundred twenty-five million, one hundred forty-five thousand, six hundred forty-six".