18166041 has 12 divisors (see below), whose sum is σ = 26685360. Its totient is φ = 11905080.

The previous prime is 18166039. The next prime is 18166051. The reversal of 18166041 is 14066181.

It is not a de Polignac number, because 18166041 - 2¹ = 18166039 is a prime.

It is a super-2 number, since 2×18166041² = 660010091227362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18165996 and 18166014.

It is not an unprimeable number, because it can be changed into a prime (18166051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16575 + ... + 17636.

It is an arithmetic number, because the mean of its divisors is an integer number (2223780).

Almost surely, 2^18166041 is an apocalyptic number.

It is an amenable number.

18166041 is a deficient number, since it is larger than the sum of its proper divisors (8519319).

18166041 is a wasteful number, since it uses less digits than its factorization.

18166041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34276 (or 34273 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18166041 is about 4262.1638870414. The cubic root of 18166041 is about 262.8775085349.

The spelling of 18166041 in words is "eighteen million, one hundred sixty-six thousand, forty-one".