1056656066556 has 48 divisors (see below), whose sum is σ = 2502601377920. Its totient is φ = 346924036800.

The previous prime is 1056656066549. The next prime is 1056656066561. The reversal of 1056656066556 is 6556606566501.

It is a super-2 number, since 2×1056656066556² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056656066496 and 1056656066505.

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, 7894035 + ... + 8026773.

Almost surely, 2^{1056656066556} is an apocalyptic number.

It is an amenable number.

1056656066556 is an abundant number, since it is smaller than the sum of its proper divisors (1445945311364).

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

1056656066556 is a wasteful number, since it uses less digits than its factorization.

1056656066556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142714 (or 142712 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 57.

The spelling of 1056656066556 in words is "one trillion, fifty-six billion, six hundred fifty-six million, sixty-six thousand, five hundred fifty-six".