18006413161165 has 32 divisors (see below), whose sum is σ = 25389511088256. Its totient is φ = 12086199471360.

The previous prime is 18006413161117. The next prime is 18006413161171. The reversal of 18006413161165 is 56116131460081.

It is not a de Polignac number, because 18006413161165 - 2³⁹ = 17456657347277 is a prime.

It is a super-2 number, since 2×18006413161165² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2177499 + ... + 6383911.

It is an arithmetic number, because the mean of its divisors is an integer number (793422221508).

Almost surely, 2^{18006413161165} is an apocalyptic number.

It is an amenable number.

18006413161165 is a deficient number, since it is larger than the sum of its proper divisors (7383097927091).

18006413161165 is a wasteful number, since it uses less digits than its factorization.

18006413161165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212429.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 18006413161165 in words is "eighteen trillion, six billion, four hundred thirteen million, one hundred sixty-one thousand, one hundred sixty-five".