18623800660541 has 8 divisors (see below), whose sum is σ = 19091579887800. Its totient is φ = 18156666204160.

The previous prime is 18623800660519. The next prime is 18623800660579. The reversal of 18623800660541 is 14506600832681.

It can be written as a sum of positive squares in 4 ways, for example, as 47519640100 + 18576281020441 = 217990^2 + 4310021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18623800660541 - 2¹⁰ = 18623800659517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18623800660541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18623800660141) 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 7 ways as a sum of consecutive naturals, for example, 161134226 + ... + 161249763.

It is an arithmetic number, because the mean of its divisors is an integer number (2386447485975).

Almost surely, 2^{18623800660541} is an apocalyptic number.

It is an amenable number.

18623800660541 is a deficient number, since it is larger than the sum of its proper divisors (467779227259).

18623800660541 is a wasteful number, since it uses less digits than its factorization.

18623800660541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322385439.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 18623800660541 in words is "eighteen trillion, six hundred twenty-three billion, eight hundred million, six hundred sixty thousand, five hundred forty-one".