18165010 has 16 divisors (see below), whose sum is σ = 34620696. Its totient is φ = 6838528.

The previous prime is 18165001. The next prime is 18165011. The reversal of 18165010 is 1056181.

It can be written as a sum of positive squares in 4 ways, for example, as 12552849 + 5612161 = 3543^2 + 2369^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18165011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53257 + ... + 53596.

Almost surely, 2^18165010 is an apocalyptic number.

18165010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18165010 is a deficient number, since it is larger than the sum of its proper divisors (16455686).

18165010 is a wasteful number, since it uses less digits than its factorization.

18165010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106877.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 18165010 is about 4262.0429373717. The cubic root of 18165010 is about 262.8725353024.

The spelling of 18165010 in words is "eighteen million, one hundred sixty-five thousand, ten".