12555404355 has 32 divisors (see below), whose sum is σ = 21665468160. Its totient is φ = 6172110720.

The previous prime is 12555404347. The next prime is 12555404357. The reversal of 12555404355 is 55340455521.

It is not a de Polignac number, because 12555404355 - 2³ = 12555404347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12555404357) 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, 88156 + ... + 181334.

It is an arithmetic number, because the mean of its divisors is an integer number (677045880).

Almost surely, 2^12555404355 is an apocalyptic number.

12555404355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12555404355 is a deficient number, since it is larger than the sum of its proper divisors (9110063805).

12555404355 is a wasteful number, since it uses less digits than its factorization.

12555404355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93891.

The product of its (nonzero) digits is 300000, while the sum is 39.

Adding to 12555404355 its reverse (55340455521), we get a palindrome (67895859876).

The spelling of 12555404355 in words is "twelve billion, five hundred fifty-five million, four hundred four thousand, three hundred fifty-five".