5656133680 has 80 divisors (see below), whose sum is σ = 13505885568. Its totient is φ = 2201600000.

The previous prime is 5656133677. The next prime is 5656133719. The reversal of 5656133680 is 863316565.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411680 + ... + 1415680.

Almost surely, 2^5656133680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5656133680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6752942784).

5656133680 is an abundant number, since it is smaller than the sum of its proper divisors (7849751888).

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

5656133680 is a wasteful number, since it uses less digits than its factorization.

5656133680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486 (or 4480 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 5656133680 is about 75207.2714569542. The cubic root of 5656133680 is about 1781.7217780122.

The spelling of 5656133680 in words is "five billion, six hundred fifty-six million, one hundred thirty-three thousand, six hundred eighty".