557163566 has 4 divisors (see below), whose sum is σ = 835745352. Its totient is φ = 278581782.

The previous prime is 557163557. The next prime is 557163577. The reversal of 557163566 is 665361755.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139290890 + ... + 139290893.

It is an arithmetic number, because the mean of its divisors is an integer number (208936338).

Almost surely, 2^557163566 is an apocalyptic number.

557163566 is a deficient number, since it is larger than the sum of its proper divisors (278581786).

557163566 is a wasteful number, since it uses less digits than its factorization.

557163566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278581785.

The product of its digits is 567000, while the sum is 44.

The square root of 557163566 is about 23604.3124449750. The cubic root of 557163566 is about 822.8630664009.

The spelling of 557163566 in words is "five hundred fifty-seven million, one hundred sixty-three thousand, five hundred sixty-six".