18180450411 has 8 divisors (see below), whose sum is σ = 24299870160. Its totient is φ = 12090665472.

The previous prime is 18180450401. The next prime is 18180450413. The reversal of 18180450411 is 11405408181.

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

It is not a de Polignac number, because 18180450411 - 2¹⁰ = 18180449387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18180450413) 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, 7407270 + ... + 7409723.

It is an arithmetic number, because the mean of its divisors is an integer number (3037483770).

Almost surely, 2^18180450411 is an apocalyptic number.

18180450411 is a deficient number, since it is larger than the sum of its proper divisors (6119419749).

18180450411 is a wasteful number, since it uses less digits than its factorization.

18180450411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817405.

The product of its (nonzero) digits is 5120, while the sum is 33.

Adding to 18180450411 its reverse (11405408181), we get a palindrome (29585858592).

The spelling of 18180450411 in words is "eighteen billion, one hundred eighty million, four hundred fifty thousand, four hundred eleven".