566654816961 has 48 divisors (see below), whose sum is σ = 872928446208. Its totient is φ = 367066080000.

The previous prime is 566654816951. The next prime is 566654816963. The reversal of 566654816961 is 169618456665.

It is not a de Polignac number, because 566654816961 - 2¹⁴ = 566654800577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566654816963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6710281 + ... + 6794201.

It is an arithmetic number, because the mean of its divisors is an integer number (18186009296).

Almost surely, 2^566654816961 is an apocalyptic number.

It is an amenable number.

566654816961 is a deficient number, since it is larger than the sum of its proper divisors (306273629247).

566654816961 is an equidigital number, since it uses as much as digits as its factorization.

566654816961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84724 (or 84712 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 566654816961 in words is "five hundred sixty-six billion, six hundred fifty-four million, eight hundred sixteen thousand, nine hundred sixty-one".