18165741136001 has 2 divisors, whose sum is σ = 18165741136002. Its totient is φ = 18165741136000.

The previous prime is 18165741135959. The next prime is 18165741136043. The reversal of 18165741136001 is 10063114756181.

It is a balanced prime because it is at equal distance from previous prime (18165741135959) and next prime (18165741136043).

It can be written as a sum of positive squares in only one way, i.e., 18000299640976 + 165441495025 = 4242676^2 + 406745^2 .

It is an emirp because it is prime and its reverse (10063114756181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18165741136001 - 2⁶ = 18165741135937 is a prime.

It is not a weakly prime, because it can be changed into another prime (18165741136201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9082870568000 + 9082870568001.

It is an arithmetic number, because the mean of its divisors is an integer number (9082870568001).

Almost surely, 2^{18165741136001} is an apocalyptic number.

It is an amenable number.

18165741136001 is a deficient number, since it is larger than the sum of its proper divisors (1).

18165741136001 is an equidigital number, since it uses as much as digits as its factorization.

18165741136001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 18165741136001 in words is "eighteen trillion, one hundred sixty-five billion, seven hundred forty-one million, one hundred thirty-six thousand, one".