5657887566 has 24 divisors (see below), whose sum is σ = 12268620000. Its totient is φ = 1884445056.

The previous prime is 5657887519. The next prime is 5657887567. The reversal of 5657887566 is 6657887565.

It is a happy number.

5657887566 is a `hidden beast` number, since 5 + 6 + 578 + 8 + 7 + 56 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657887567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103350 + ... + 148313.

It is an arithmetic number, because the mean of its divisors is an integer number (511192500).

Almost surely, 2^5657887566 is an apocalyptic number.

5657887566 is an abundant number, since it is smaller than the sum of its proper divisors (6610732434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5657887566 is a wasteful number, since it uses less digits than its factorization.

5657887566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252920 (or 252917 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 63.

The square root of 5657887566 is about 75218.9309017351. The cubic root of 5657887566 is about 1781.9059211104.

Subtracting 5657887566 from its reverse (6657887565), we obtain a palindrome (999999999).

The spelling of 5657887566 in words is "five billion, six hundred fifty-seven million, eight hundred eighty-seven thousand, five hundred sixty-six".