555311220405405 has 16 divisors (see below), whose sum is σ = 889765424780544. Its totient is φ = 295743493505600.

The previous prime is 555311220405301. The next prime is 555311220405457. The reversal of 555311220405405 is 504504022113555.

It is a happy number.

It is not a de Polignac number, because 555311220405405 - 2¹⁷ = 555311220274333 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 26405658549 + ... + 26405679578.

It is an arithmetic number, because the mean of its divisors is an integer number (55610339048784).

Almost surely, 2^{555311220405405} is an apocalyptic number.

It is an amenable number.

555311220405405 is a deficient number, since it is larger than the sum of its proper divisors (334454204375139).

555311220405405 is a wasteful number, since it uses less digits than its factorization.

555311220405405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52811338836.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 555311220405405 in words is "five hundred fifty-five trillion, three hundred eleven billion, two hundred twenty million, four hundred five thousand, four hundred five".