180443840404 has 6 divisors (see below), whose sum is σ = 315776720714. Its totient is φ = 90221920200.

The previous prime is 180443840399. The next prime is 180443840413. The reversal of 180443840404 is 404048344081.

It can be written as a sum of positive squares in only one way, i.e., 124431151504 + 56012688900 = 352748^2 + 236670^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22555480047 + ... + 22555480054.

Almost surely, 2^180443840404 is an apocalyptic number.

It is an amenable number.

180443840404 is a deficient number, since it is larger than the sum of its proper divisors (135332880310).

180443840404 is a wasteful number, since it uses less digits than its factorization.

180443840404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45110960105 (or 45110960103 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 180443840404 in words is "one hundred eighty billion, four hundred forty-three million, eight hundred forty thousand, four hundred four".