18220364414 has 32 divisors (see below), whose sum is σ = 33084884160. Its totient is φ = 7346585088.

The previous prime is 18220364401. The next prime is 18220364417. The reversal of 18220364414 is 41446302281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18220364417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679184 + ... + 705500.

It is an arithmetic number, because the mean of its divisors is an integer number (1033902630).

Almost surely, 2^18220364414 is an apocalyptic number.

18220364414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18220364414 is a deficient number, since it is larger than the sum of its proper divisors (14864519746).

18220364414 is a wasteful number, since it uses less digits than its factorization.

18220364414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29252.

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 18220364414 its reverse (41446302281), we get a palindrome (59666666695).

The spelling of 18220364414 in words is "eighteen billion, two hundred twenty million, three hundred sixty-four thousand, four hundred fourteen".