168404346548 has 12 divisors (see below), whose sum is σ = 297745829892. Its totient is φ = 83334109440.

The previous prime is 168404346491. The next prime is 168404346641. The reversal of 168404346548 is 845643404861.

It can be written as a sum of positive squares in 2 ways, for example, as 131702216464 + 36702130084 = 362908^2 + 191578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168404346548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217015523 + ... + 217016298.

It is an arithmetic number, because the mean of its divisors is an integer number (24812152491).

Almost surely, 2^168404346548 is an apocalyptic number.

It is an amenable number.

168404346548 is a deficient number, since it is larger than the sum of its proper divisors (129341483344).

168404346548 is a wasteful number, since it uses less digits than its factorization.

168404346548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434031922 (or 434031920 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 53.

The spelling of 168404346548 in words is "one hundred sixty-eight billion, four hundred four million, three hundred forty-six thousand, five hundred forty-eight".