18010006 has 16 divisors (see below), whose sum is σ = 31381920. Its totient is φ = 7591680.

The previous prime is 18010001. The next prime is 18010007. The reversal of 18010006 is 60001081.

18010006 = T₃₄₉ + T₃₅₀ + ... + T₅₃₁.

It is a super-2 number, since 2×18010006² = 648720632240072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9691 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (1961370).

Almost surely, 2^18010006 is an apocalyptic number.

18010006 is a deficient number, since it is larger than the sum of its proper divisors (13371914).

18010006 is a wasteful number, since it uses less digits than its factorization.

18010006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21159.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 18010006 is about 4243.8197416950. The cubic root of 18010006 is about 262.1226917928.

Adding to 18010006 its reverse (60001081), we get a palindrome (78011087).

The spelling of 18010006 in words is "eighteen million, ten thousand, six".