2056688366556 has 48 divisors (see below), whose sum is σ = 4920571031040. Its totient is φ = 668303088000.

The previous prime is 2056688366543. The next prime is 2056688366611. The reversal of 2056688366556 is 6556638866502.

It is a super-2 number, since 2×2056688366556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 7122601 + ... + 7405728.

It is an arithmetic number, because the mean of its divisors is an integer number (102511896480).

Almost surely, 2^{2056688366556} is an apocalyptic number.

It is an amenable number.

2056688366556 is an abundant number, since it is smaller than the sum of its proper divisors (2863882664484).

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

2056688366556 is a wasteful number, since it uses less digits than its factorization.

2056688366556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14528634 (or 14528632 counting only the distinct ones).

The product of its (nonzero) digits is 373248000, while the sum is 66.

The spelling of 2056688366556 in words is "two trillion, fifty-six billion, six hundred eighty-eight million, three hundred sixty-six thousand, five hundred fifty-six".