560661569 has 8 divisors (see below), whose sum is σ = 604504320. Its totient is φ = 516920976.

The previous prime is 560661551. The next prime is 560661571. The reversal of 560661569 is 965166065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 560661569 - 2²⁰ = 559612993 is a prime.

It is a super-2 number, since 2×560661569² = 628682789907083522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (560661539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13937 + ... + 36270.

It is an arithmetic number, because the mean of its divisors is an integer number (75563040).

Almost surely, 2^560661569 is an apocalyptic number.

It is an amenable number.

560661569 is a deficient number, since it is larger than the sum of its proper divisors (43842751).

560661569 is a wasteful number, since it uses less digits than its factorization.

560661569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51079.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 560661569 is about 23678.2932028472. The cubic root of 560661569 is about 824.5815172976.

The spelling of 560661569 in words is "five hundred sixty million, six hundred sixty-one thousand, five hundred sixty-nine".