556403911378 has 16 divisors (see below), whose sum is σ = 976017493440. Its totient is φ = 232913264976.

The previous prime is 556403911373. The next prime is 556403911381. The reversal of 556403911378 is 873119304655.

It is not an unprimeable number, because it can be changed into a prime (556403911373) 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, 462128893 + ... + 462130096.

It is an arithmetic number, because the mean of its divisors is an integer number (61001093340).

Almost surely, 2^556403911378 is an apocalyptic number.

556403911378 is a deficient number, since it is larger than the sum of its proper divisors (419613582062).

556403911378 is a wasteful number, since it uses less digits than its factorization.

556403911378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924259041.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 556403911378 in words is "five hundred fifty-six billion, four hundred three million, nine hundred eleven thousand, three hundred seventy-eight".