180491116 has 12 divisors (see below), whose sum is σ = 340156432. Its totient is φ = 83303568.

The previous prime is 180491111. The next prime is 180491117. The reversal of 180491116 is 611194081.

It is not an unprimeable number, because it can be changed into a prime (180491111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735440 + ... + 1735543.

Almost surely, 2^180491116 is an apocalyptic number.

It is an amenable number.

180491116 is a deficient number, since it is larger than the sum of its proper divisors (159665316).

180491116 is a wasteful number, since it uses less digits than its factorization.

180491116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471000 (or 3470998 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 180491116 is about 13434.6982102316. The cubic root of 180491116 is about 565.1346597350.

The spelling of 180491116 in words is "one hundred eighty million, four hundred ninety-one thousand, one hundred sixteen".