557551966 has 8 divisors (see below), whose sum is σ = 838739160. Its totient is φ = 277972248.

The previous prime is 557551933. The next prime is 557552003. The reversal of 557551966 is 669155755.

557551966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401001 + ... + 402388.

It is an arithmetic number, because the mean of its divisors is an integer number (104842395).

Almost surely, 2^557551966 is an apocalyptic number.

557551966 is a deficient number, since it is larger than the sum of its proper divisors (281187194).

557551966 is a wasteful number, since it uses less digits than its factorization.

557551966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803738.

The product of its digits is 1417500, while the sum is 49.

The square root of 557551966 is about 23612.5383218323. The cubic root of 557551966 is about 823.0542285650.

The spelling of 557551966 in words is "five hundred fifty-seven million, five hundred fifty-one thousand, nine hundred sixty-six".