18185465041 has 8 divisors (see below), whose sum is σ = 19148853600. Its totient is φ = 17222702400.

The previous prime is 18185465033. The next prime is 18185465071. The reversal of 18185465041 is 14056458181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18185465041 - 2³ = 18185465033 is a prime.

It is a super-2 number, since 2×18185465041² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18185465021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96235 + ... + 213616.

It is an arithmetic number, because the mean of its divisors is an integer number (2393606700).

Almost surely, 2^18185465041 is an apocalyptic number.

It is an amenable number.

18185465041 is a deficient number, since it is larger than the sum of its proper divisors (963388559).

18185465041 is a wasteful number, since it uses less digits than its factorization.

18185465041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312959.

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 18185465041 in words is "eighteen billion, one hundred eighty-five million, four hundred sixty-five thousand, forty-one".