18065660228741 has 4 divisors (see below), whose sum is σ = 18234498174912. Its totient is φ = 17896822282572.

The previous prime is 18065660228723. The next prime is 18065660228783. The reversal of 18065660228741 is 14782206656081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18065660228741 - 2¹⁸ = 18065659966597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18065660278741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84418972925 + ... + 84418973138.

It is an arithmetic number, because the mean of its divisors is an integer number (4558624543728).

Almost surely, 2^{18065660228741} is an apocalyptic number.

It is an amenable number.

18065660228741 is a deficient number, since it is larger than the sum of its proper divisors (168837946171).

18065660228741 is a wasteful number, since it uses less digits than its factorization.

18065660228741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168837946170.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 18065660228741 in words is "eighteen trillion, sixty-five billion, six hundred sixty million, two hundred twenty-eight thousand, seven hundred forty-one".