566013156042961 has 9 divisors (see below), whose sum is σ = 622146979834779. Its totient is φ = 514557176674200.

The previous prime is 566013156042947. The next prime is 566013156042977. The reversal of 566013156042961 is 169240651310665.

The square root of 566013156042961 is 23791031.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 519088738023361 + 46924418019600 = 22783519^2 + 6850140^2 .

It is not a de Polignac number, because 566013156042961 - 2⁹ = 566013156042449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566013156042911) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 260619931 + ... + 262782751.

Almost surely, 2^{566013156042961} is an apocalyptic number.

566013156042961 is the 23791031-st square number.

566013156042961 is the 11895516-th centered octagonal number.

It is an amenable number.

566013156042961 is a deficient number, since it is larger than the sum of its proper divisors (56133823791818).

566013156042961 is an frugal number, since it uses more digits than its factorization.

566013156042961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325664 (or 2162832 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 566013156042961 in words is "five hundred sixty-six trillion, thirteen billion, one hundred fifty-six million, forty-two thousand, nine hundred sixty-one".