16105005556018 has 16 divisors (see below), whose sum is σ = 24853932122400. Its totient is φ = 7823654299296.

The previous prime is 16105005555997. The next prime is 16105005556063. The reversal of 16105005556018 is 81065550050161.

It is a happy number.

It is a super-3 number, since 3×16105005556018³ (a number of 41 digits) contains 333 as substring.

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, 823186168 + ... + 823205731.

It is an arithmetic number, because the mean of its divisors is an integer number (1553370757650).

Almost surely, 2^{16105005556018} is an apocalyptic number.

16105005556018 is a deficient number, since it is larger than the sum of its proper divisors (8748926566382).

16105005556018 is a wasteful number, since it uses less digits than its factorization.

16105005556018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646392041.

The product of its (nonzero) digits is 180000, while the sum is 43.

The spelling of 16105005556018 in words is "sixteen trillion, one hundred five billion, five million, five hundred fifty-six thousand, eighteen".