168665265548 has 48 divisors (see below), whose sum is σ = 325336467456. Its totient is φ = 76017614400.

The previous prime is 168665265547. The next prime is 168665265569. The reversal of 168665265548 is 845562566861.

It is a happy number.

168665265548 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (168665265547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18426773 + ... + 18435923.

It is an arithmetic number, because the mean of its divisors is an integer number (6777843072).

Almost surely, 2^168665265548 is an apocalyptic number.

It is an amenable number.

168665265548 is a deficient number, since it is larger than the sum of its proper divisors (156671201908).

168665265548 is a wasteful number, since it uses less digits than its factorization.

168665265548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17454 (or 17452 counting only the distinct ones).

The product of its digits is 82944000, while the sum is 62.

The spelling of 168665265548 in words is "one hundred sixty-eight billion, six hundred sixty-five million, two hundred sixty-five thousand, five hundred forty-eight".