161475206804 has 24 divisors (see below), whose sum is σ = 283208788800. Its totient is φ = 80558486144.

The previous prime is 161475206801. The next prime is 161475206819. The reversal of 161475206804 is 408602574161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161475206801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13874972 + ... + 13886604.

It is an arithmetic number, because the mean of its divisors is an integer number (11800366200).

Almost surely, 2^161475206804 is an apocalyptic number.

It is an amenable number.

161475206804 is a deficient number, since it is larger than the sum of its proper divisors (121733581996).

161475206804 is a wasteful number, since it uses less digits than its factorization.

161475206804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039 (or 19037 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 161475206804 in words is "one hundred sixty-one billion, four hundred seventy-five million, two hundred six thousand, eight hundred four".