560665978 has 4 divisors (see below), whose sum is σ = 840998970. Its totient is φ = 280332988.

The previous prime is 560665951. The next prime is 560665999. The reversal of 560665978 is 879566065.

560665978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 324828529 + 235837449 = 18023^2 + 15357^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140166493 + ... + 140166496.

Almost surely, 2^560665978 is an apocalyptic number.

560665978 is a deficient number, since it is larger than the sum of its proper divisors (280332992).

560665978 is a wasteful number, since it uses less digits than its factorization.

560665978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280332991.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The square root of 560665978 is about 23678.3863048139. The cubic root of 560665978 is about 824.5836787741.

The spelling of 560665978 in words is "five hundred sixty million, six hundred sixty-five thousand, nine hundred seventy-eight".