220505411405 has 32 divisors (see below), whose sum is σ = 268135575936. Its totient is φ = 174070923264.

The previous prime is 220505411369. The next prime is 220505411407. The reversal of 220505411405 is 504114505022.

It is a cyclic number.

It is not a de Polignac number, because 220505411405 - 2⁶ = 220505411341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220505411407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105858494 + ... + 105860576.

It is an arithmetic number, because the mean of its divisors is an integer number (8379236748).

Almost surely, 2^220505411405 is an apocalyptic number.

It is an amenable number.

220505411405 is a deficient number, since it is larger than the sum of its proper divisors (47630164531).

220505411405 is a wasteful number, since it uses less digits than its factorization.

220505411405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 220505411405 its reverse (504114505022), we get a palindrome (724619916427).

The spelling of 220505411405 in words is "two hundred twenty billion, five hundred five million, four hundred eleven thousand, four hundred five".