5657446656 has 81 divisors (see below), whose sum is σ = 16322229651. Its totient is φ = 1884612096.

The previous prime is 5657446621. The next prime is 5657446673. The reversal of 5657446656 is 6566447565.

The square root of 5657446656 is 75216.

It is a perfect power (a square), and thus also a powerful number.

5657446656 is a `hidden beast` number, since 5 + 6 + 574 + 4 + 6 + 65 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3609585 + ... + 3611151.

Almost surely, 2^5657446656 is an apocalyptic number.

5657446656 is the 75216-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5657446656

5657446656 is an abundant number, since it is smaller than the sum of its proper divisors (10664782995).

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

5657446656 is an frugal number, since it uses more digits than its factorization.

5657446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156 (or 1572 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The cubic root of 5657446656 is about 1781.8596328953.

Subtracting 5657446656 from its reverse (6566447565), we obtain a palindrome (909000909).

The spelling of 5657446656 in words is "five billion, six hundred fifty-seven million, four hundred forty-six thousand, six hundred fifty-six".