18063016 has 8 divisors (see below), whose sum is σ = 33868170. Its totient is φ = 9031504.

The previous prime is 18063013. The next prime is 18063029. The reversal of 18063016 is 61036081.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 6022116 = 3470^2 + 2454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18063011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128931 + ... + 1128946.

Almost surely, 2^18063016 is an apocalyptic number.

It is an amenable number.

18063016 is a deficient number, since it is larger than the sum of its proper divisors (15805154).

18063016 is a wasteful number, since it uses less digits than its factorization.

18063016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257883 (or 2257879 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 18063016 is about 4250.0607054488. The cubic root of 18063016 is about 262.3796140344.

Adding to 18063016 its reverse (61036081), we get a palindrome (79099097).

The spelling of 18063016 in words is "eighteen million, sixty-three thousand, sixteen".