180581803272 has 128 divisors (see below), whose sum is σ = 571978713600. Its totient is φ = 52295169024.

The previous prime is 180581803271. The next prime is 180581803277. The reversal of 180581803272 is 272308185081.

It is not an unprimeable number, because it can be changed into a prime (180581803271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1843728 + ... + 1939199.

It is an arithmetic number, because the mean of its divisors is an integer number (4468583700).

Almost surely, 2^180581803272 is an apocalyptic number.

180581803272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180581803272 is an abundant number, since it is smaller than the sum of its proper divisors (391396910328).

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

180581803272 is a wasteful number, since it uses less digits than its factorization.

180581803272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782972 (or 3782962 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 180581803272 in words is "one hundred eighty billion, five hundred eighty-one million, eight hundred three thousand, two hundred seventy-two".