560611666 has 4 divisors (see below), whose sum is σ = 840917502. Its totient is φ = 280305832.

The previous prime is 560611661. The next prime is 560611691. The reversal of 560611666 is 666116065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 504676225 + 55935441 = 22465^2 + 7479^2 .

It is not an unprimeable number, because it can be changed into a prime (560611661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140152915 + ... + 140152918.

Almost surely, 2^560611666 is an apocalyptic number.

560611666 is a deficient number, since it is larger than the sum of its proper divisors (280305836).

560611666 is a wasteful number, since it uses less digits than its factorization.

560611666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280305835.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 560611666 is about 23677.2394083432. The cubic root of 560611666 is about 824.5570519667.

The spelling of 560611666 in words is "five hundred sixty million, six hundred eleven thousand, six hundred sixty-six".