556656104545 has 4 divisors (see below), whose sum is σ = 667987325460. Its totient is φ = 445324883632.

The previous prime is 556656104539. The next prime is 556656104549. The reversal of 556656104545 is 545401656655.

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 228391277409 + 328264827136 = 477903^2 + 572944^2 .

It is a cyclic number.

It is not a de Polignac number, because 556656104545 - 2⁵ = 556656104513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556656104492 and 556656104501.

It is not an unprimeable number, because it can be changed into a prime (556656104549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55665610450 + ... + 55665610459.

It is an arithmetic number, because the mean of its divisors is an integer number (166996831365).

Almost surely, 2^556656104545 is an apocalyptic number.

It is an amenable number.

556656104545 is a deficient number, since it is larger than the sum of its proper divisors (111331220915).

556656104545 is a wasteful number, since it uses less digits than its factorization.

556656104545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111331220914.

The product of its (nonzero) digits is 10800000, while the sum is 52.

The spelling of 556656104545 in words is "five hundred fifty-six billion, six hundred fifty-six million, one hundred four thousand, five hundred forty-five".