180055427780 has 24 divisors (see below), whose sum is σ = 394556242752. Its totient is φ = 68890772192.

The previous prime is 180055427779. The next prime is 180055427791. The reversal of 180055427780 is 87724550081.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195711962 + ... + 195712881.

It is an arithmetic number, because the mean of its divisors is an integer number (16439843448).

Almost surely, 2^180055427780 is an apocalyptic number.

180055427780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180055427780 is an abundant number, since it is smaller than the sum of its proper divisors (214500814972).

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

180055427780 is a wasteful number, since it uses less digits than its factorization.

180055427780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391424875 (or 391424873 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 180055427780 in words is "one hundred eighty billion, fifty-five million, four hundred twenty-seven thousand, seven hundred eighty".