556405484504655 has 8 divisors (see below), whose sum is σ = 890248775207472. Its totient is φ = 296749591735808.

The previous prime is 556405484504621. The next prime is 556405484504657.

556405484504655 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556405484504655 - 2²⁶ = 556405417395791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556405484504657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18546849483474 + ... + 18546849483503.

It is an arithmetic number, because the mean of its divisors is an integer number (111281096900934).

Almost surely, 2^{556405484504655} is an apocalyptic number.

556405484504655 is a deficient number, since it is larger than the sum of its proper divisors (333843290702817).

556405484504655 is a wasteful number, since it uses less digits than its factorization.

556405484504655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37093698966985.

The product of its (nonzero) digits is 1152000000, while the sum is 66.

The spelling of 556405484504655 in words is "five hundred fifty-six trillion, four hundred five billion, four hundred eighty-four million, five hundred four thousand, six hundred fifty-five".