18011627105 has 8 divisors (see below), whose sum is σ = 21614791464. Its totient is φ = 14408742400.

The previous prime is 18011627027. The next prime is 18011627131. The reversal of 18011627105 is 50172611081.

It can be written as a sum of positive squares in 4 ways, for example, as 2689148449 + 15322478656 = 51857^2 + 123784^2 .

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

It is not a de Polignac number, because 18011627105 - 2²⁰ = 18010578529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117425 + ... + 223185.

It is an arithmetic number, because the mean of its divisors is an integer number (2701848933).

Almost surely, 2^18011627105 is an apocalyptic number.

It is an amenable number.

18011627105 is a deficient number, since it is larger than the sum of its proper divisors (3603164359).

18011627105 is a wasteful number, since it uses less digits than its factorization.

18011627105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139827.

The product of its (nonzero) digits is 3360, while the sum is 32.

The spelling of 18011627105 in words is "eighteen billion, eleven million, six hundred twenty-seven thousand, one hundred five".