1056566446563 has 16 divisors (see below), whose sum is σ = 1418590607616. Its totient is φ = 699468290400.

The previous prime is 1056566446541. The next prime is 1056566446577. The reversal of 1056566446563 is 3656446656501.

It is not a de Polignac number, because 1056566446563 - 2⁸ = 1056566446307 is a prime.

It is a super-2 number, since 2×1056566446563² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056566406563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533413 + ... + 1548438.

It is an arithmetic number, because the mean of its divisors is an integer number (88661912976).

Almost surely, 2^{1056566446563} is an apocalyptic number.

1056566446563 is a deficient number, since it is larger than the sum of its proper divisors (362024161053).

1056566446563 is a wasteful number, since it uses less digits than its factorization.

1056566446563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083034.

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 1056566446563 in words is "one trillion, fifty-six billion, five hundred sixty-six million, four hundred forty-six thousand, five hundred sixty-three".