18080116 has 12 divisors (see below), whose sum is σ = 33016032. Its totient is φ = 8646968.

The previous prime is 18080063. The next prime is 18080119. The reversal of 18080116 is 61108081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080119) 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, 98170 + ... + 98353.

It is an arithmetic number, because the mean of its divisors is an integer number (2751336).

Almost surely, 2^18080116 is an apocalyptic number.

It is an amenable number.

18080116 is a deficient number, since it is larger than the sum of its proper divisors (14935916).

18080116 is a wasteful number, since it uses less digits than its factorization.

18080116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196550 (or 196548 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 18080116 is about 4252.0719655246. The cubic root of 18080116 is about 262.4623849352.

Adding to 18080116 its reverse (61108081), we get a palindrome (79188197).

The spelling of 18080116 in words is "eighteen million, eighty thousand, one hundred sixteen".