180173152128 has 64 divisors (see below), whose sum is σ = 478644526800. Its totient is φ = 60050239488.

The previous prime is 180173152109. The next prime is 180173152129. The reversal of 180173152128 is 821251371081.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180173152129) 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, 3666988 + ... + 3715796.

Almost surely, 2^180173152128 is an apocalyptic number.

It is an amenable number.

180173152128 is an abundant number, since it is smaller than the sum of its proper divisors (298471374672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180173152128 is an equidigital number, since it uses as much as digits as its factorization.

180173152128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58439 (or 58427 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 180173152128 in words is "one hundred eighty billion, one hundred seventy-three million, one hundred fifty-two thousand, one hundred twenty-eight".