18165741436007 has 4 divisors (see below), whose sum is σ = 19817172475656. Its totient is φ = 16514310396360.

The previous prime is 18165741436001. The next prime is 18165741436049. The reversal of 18165741436007 is 70063414756181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18165741436007 - 2⁴ = 18165741435991 is a prime.

It is a super-2 number, since 2×18165741436007² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18165741436007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18165741436001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825715519808 + ... + 825715519829.

It is an arithmetic number, because the mean of its divisors is an integer number (4954293118914).

Almost surely, 2^{18165741436007} is an apocalyptic number.

18165741436007 is a deficient number, since it is larger than the sum of its proper divisors (1651431039649).

18165741436007 is a wasteful number, since it uses less digits than its factorization.

18165741436007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651431039648.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 18165741436007 in words is "eighteen trillion, one hundred sixty-five billion, seven hundred forty-one million, four hundred thirty-six thousand, seven".