180055427785 has 8 divisors (see below), whose sum is σ = 216196919496. Its totient is φ = 143957404800.

The previous prime is 180055427779. The next prime is 180055427791. The reversal of 180055427785 is 587724550081.

180055427785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180055427779) and next prime (180055427791).

It can be written as a sum of positive squares in 4 ways, for example, as 14530132681 + 165525295104 = 120541^2 + 406848^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180055427785 - 2⁵ = 180055427753 is a prime.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 10858066 + ... + 10874635.

It is an arithmetic number, because the mean of its divisors is an integer number (27024614937).

Almost surely, 2^180055427785 is an apocalyptic number.

It is an amenable number.

180055427785 is a deficient number, since it is larger than the sum of its proper divisors (36141491711).

180055427785 is a wasteful number, since it uses less digits than its factorization.

180055427785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21734363.

The product of its (nonzero) digits is 3136000, while the sum is 52.

The spelling of 180055427785 in words is "one hundred eighty billion, fifty-five million, four hundred twenty-seven thousand, seven hundred eighty-five".