557354687866 has 4 divisors (see below), whose sum is σ = 836032031802. Its totient is φ = 278677343932.

The previous prime is 557354687831. The next prime is 557354687873. The reversal of 557354687866 is 668786453755.

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

It can be written as a sum of positive squares in only one way, i.e., 448068245641 + 109286442225 = 669379^2 + 330585^2 .

It is a super-3 number, since 3×557354687866³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557354687795 and 557354687804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139338671965 + ... + 139338671968.

Almost surely, 2^557354687866 is an apocalyptic number.

557354687866 is a deficient number, since it is larger than the sum of its proper divisors (278677343936).

557354687866 is a wasteful number, since it uses less digits than its factorization.

557354687866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278677343935.

The product of its digits is 1016064000, while the sum is 70.

The spelling of 557354687866 in words is "five hundred fifty-seven billion, three hundred fifty-four million, six hundred eighty-seven thousand, eight hundred sixty-six".