165188728108 has 6 divisors (see below), whose sum is σ = 289080274196. Its totient is φ = 82594364052.

The previous prime is 165188728091. The next prime is 165188728151. The reversal of 165188728108 is 801827881561.

165188728108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20648591010 + ... + 20648591017.

Almost surely, 2^165188728108 is an apocalyptic number.

It is an amenable number.

165188728108 is a deficient number, since it is larger than the sum of its proper divisors (123891546088).

165188728108 is a wasteful number, since it uses less digits than its factorization.

165188728108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41297182031 (or 41297182029 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 55.

The spelling of 165188728108 in words is "one hundred sixty-five billion, one hundred eighty-eight million, seven hundred twenty-eight thousand, one hundred eight".