5656557007720 has 64 divisors (see below), whose sum is σ = 13012193548800. Its totient is φ = 2212071552000.

The previous prime is 5656557007691. The next prime is 5656557007819. The reversal of 5656557007720 is 277007556565.

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, 90720 + ... + 3364720.

It is an arithmetic number, because the mean of its divisors is an integer number (203315524200).

Almost surely, 2^{5656557007720} 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 5656557007720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6506096774400).

5656557007720 is an abundant number, since it is smaller than the sum of its proper divisors (7355636541080).

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

5656557007720 is a wasteful number, since it uses less digits than its factorization.

5656557007720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274978 (or 3274974 counting only the distinct ones).

The product of its (nonzero) digits is 15435000, while the sum is 55.

The spelling of 5656557007720 in words is "five trillion, six hundred fifty-six billion, five hundred fifty-seven million, seven thousand, seven hundred twenty".