557566908851 has 4 divisors (see below), whose sum is σ = 557579257872. Its totient is φ = 557554559832.

The previous prime is 557566908817. The next prime is 557566908901. The reversal of 557566908851 is 158809665755.

557566908851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557566908851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557566928851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106535 + ... + 6197168.

It is an arithmetic number, because the mean of its divisors is an integer number (139394814468).

Almost surely, 2^557566908851 is an apocalyptic number.

557566908851 is a deficient number, since it is larger than the sum of its proper divisors (12349021).

557566908851 is a wasteful number, since it uses less digits than its factorization.

557566908851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349020.

The product of its (nonzero) digits is 90720000, while the sum is 65.

The spelling of 557566908851 in words is "five hundred fifty-seven billion, five hundred sixty-six million, nine hundred eight thousand, eight hundred fifty-one".