566061506666 has 16 divisors (see below), whose sum is σ = 849802249800. Its totient is φ = 282794185728.

The previous prime is 566061506653. The next prime is 566061506677. The reversal of 566061506666 is 666605160665.

It can be written as a sum of positive squares in 4 ways, for example, as 556165435225 + 9896071441 = 745765^2 + 99479^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13326470 + ... + 13368878.

Almost surely, 2^566061506666 is an apocalyptic number.

566061506666 is a deficient number, since it is larger than the sum of its proper divisors (283740743134).

566061506666 is a wasteful number, since it uses less digits than its factorization.

566061506666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47833.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 566061506666 in words is "five hundred sixty-six billion, sixty-one million, five hundred six thousand, six hundred sixty-six".