12355338405 has 16 divisors (see below), whose sum is σ = 20302827264. Its totient is φ = 6411418560.

The previous prime is 12355338389. The next prime is 12355338409. The reversal of 12355338405 is 50483355321.

It is not a de Polignac number, because 12355338405 - 2⁴ = 12355338389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355338409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11130381 + ... + 11131490.

It is an arithmetic number, because the mean of its divisors is an integer number (1268926704).

Almost surely, 2^12355338405 is an apocalyptic number.

12355338405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12355338405 is a deficient number, since it is larger than the sum of its proper divisors (7947488859).

12355338405 is a wasteful number, since it uses less digits than its factorization.

12355338405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261916.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 12355338405 in words is "twelve billion, three hundred fifty-five million, three hundred thirty-eight thousand, four hundred five".