18211059582241 has 8 divisors (see below), whose sum is σ = 18923006586368. Its totient is φ = 17506893420000.

The previous prime is 18211059582239. The next prime is 18211059582257. The reversal of 18211059582241 is 14228595011281.

It is a happy number.

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 18211059582241 - 2¹ = 18211059582239 is a prime.

It is a super-2 number, since 2×18211059582241² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18211059582271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945205700 + ... + 1945215061.

It is an arithmetic number, because the mean of its divisors is an integer number (2365375823296).

Almost surely, 2^{18211059582241} is an apocalyptic number.

It is an amenable number.

18211059582241 is a deficient number, since it is larger than the sum of its proper divisors (711947004127).

18211059582241 is a wasteful number, since it uses less digits than its factorization.

18211059582241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890420943.

The product of its (nonzero) digits is 460800, while the sum is 49.

The spelling of 18211059582241 in words is "eighteen trillion, two hundred eleven billion, fifty-nine million, five hundred eighty-two thousand, two hundred forty-one".