18055671 has 16 divisors (see below), whose sum is σ = 25036800. Its totient is φ = 11561760.

The previous prime is 18055663. The next prime is 18055679. The reversal of 18055671 is 17655081.

It is an interprime number because it is at equal distance from previous prime (18055663) and next prime (18055679).

It is not a de Polignac number, because 18055671 - 2³ = 18055663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055679) 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 15 ways as a sum of consecutive naturals, for example, 13206 + ... + 14508.

It is an arithmetic number, because the mean of its divisors is an integer number (1564800).

Almost surely, 2^18055671 is an apocalyptic number.

18055671 is a deficient number, since it is larger than the sum of its proper divisors (6981129).

18055671 is a wasteful number, since it uses less digits than its factorization.

18055671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 18055671 is about 4249.1965122832. The cubic root of 18055671 is about 262.3440452320.

The spelling of 18055671 in words is "eighteen million, fifty-five thousand, six hundred seventy-one".