181820018182 has 16 divisors (see below), whose sum is σ = 297556720704. Its totient is φ = 82636281000.

The previous prime is 181820018153. The next prime is 181820018197. The reversal of 181820018182 is 281810028181.

It is a super-3 number, since 3×181820018182³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254544 + ... + 654547.

It is an arithmetic number, because the mean of its divisors is an integer number (18597295044).

Almost surely, 2^181820018182 is an apocalyptic number.

181820018182 is a deficient number, since it is larger than the sum of its proper divisors (115736702522).

181820018182 is a wasteful number, since it uses less digits than its factorization.

181820018182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918195.

The product of its (nonzero) digits is 16384, while the sum is 40.

Subtracting 181820018182 from its reverse (281810028181), we obtain a palindrome (99990009999).

It can be divided in two parts, 1818200 and 18182, that multiplied together give a square (33058512400 = 181820²).

The spelling of 181820018182 in words is "one hundred eighty-one billion, eight hundred twenty million, eighteen thousand, one hundred eighty-two".