556103663 has 8 divisors (see below), whose sum is σ = 562917888. Its totient is φ = 549327744.

The previous prime is 556103641. The next prime is 556103693. The reversal of 556103663 is 366301655.

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 556103663 - 2¹⁶ = 556038127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556103693) 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, 20195 + ... + 38987.

It is an arithmetic number, because the mean of its divisors is an integer number (70364736).

Almost surely, 2^556103663 is an apocalyptic number.

556103663 is a deficient number, since it is larger than the sum of its proper divisors (6814225).

556103663 is a wasteful number, since it uses less digits than its factorization.

556103663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19153.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 556103663 is about 23581.8502878803. The cubic root of 556103663 is about 822.3409524232.

The spelling of 556103663 in words is "five hundred fifty-six million, one hundred three thousand, six hundred sixty-three".