32205140405 has 4 divisors (see below), whose sum is σ = 38646168492. Its totient is φ = 25764112320.

The previous prime is 32205140393. The next prime is 32205140419. The reversal of 32205140405 is 50404150223.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18940090129 + 13265050276 = 137623^2 + 115174^2 .

It is not a de Polignac number, because 32205140405 - 2¹⁰ = 32205139381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220514036 + ... + 3220514045.

It is an arithmetic number, because the mean of its divisors is an integer number (9661542123).

Almost surely, 2^32205140405 is an apocalyptic number.

It is an amenable number.

32205140405 is a deficient number, since it is larger than the sum of its proper divisors (6441028087).

32205140405 is an equidigital number, since it uses as much as digits as its factorization.

32205140405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441028086.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 32205140405 its reverse (50404150223), we get a palindrome (82609290628).

The spelling of 32205140405 in words is "thirty-two billion, two hundred five million, one hundred forty thousand, four hundred five".