18005532017 has 8 divisors (see below), whose sum is σ = 19785775392. Its totient is φ = 16249184800.

The previous prime is 18005532011. The next prime is 18005532023. The reversal of 18005532017 is 71023550081.

It is an interprime number because it is at equal distance from previous prime (18005532011) and next prime (18005532023).

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 18005532017 - 2¹⁶ = 18005466481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18005532011) 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, 5972459 + ... + 5975472.

It is an arithmetic number, because the mean of its divisors is an integer number (2473221924).

Almost surely, 2^18005532017 is an apocalyptic number.

It is an amenable number.

18005532017 is a deficient number, since it is larger than the sum of its proper divisors (1780243375).

18005532017 is a wasteful number, since it uses less digits than its factorization.

18005532017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948079.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 18005532017 in words is "eighteen billion, five million, five hundred thirty-two thousand, seventeen".