18108074467145 has 16 divisors (see below), whose sum is σ = 23407053101712. Its totient is φ = 13368774144000.

The previous prime is 18108074467123. The next prime is 18108074467151. The reversal of 18108074467145 is 54176447080181.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9011691794704 + 9096382672441 = 3001948^2 + 3016021^2 .

It is not a de Polignac number, because 18108074467145 - 2¹² = 18108074463049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34554452 + ... + 35074581.

It is an arithmetic number, because the mean of its divisors is an integer number (1462940818857).

Almost surely, 2^{18108074467145} is an apocalyptic number.

It is an amenable number.

18108074467145 is a deficient number, since it is larger than the sum of its proper divisors (5298978634567).

18108074467145 is a wasteful number, since it uses less digits than its factorization.

18108074467145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69633052.

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 18108074467145 in words is "eighteen trillion, one hundred eight billion, seventy-four million, four hundred sixty-seven thousand, one hundred forty-five".