560121066 has 48 divisors (see below), whose sum is σ = 1309266504. Its totient is φ = 172403712.

The previous prime is 560121017. The next prime is 560121073. The reversal of 560121066 is 660121065.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 507195441 + 52925625 = 22521^2 + 7275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1051 + ... + 33486.

Almost surely, 2^560121066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 560121066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654633252).

560121066 is an abundant number, since it is smaller than the sum of its proper divisors (749145438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

560121066 is a wasteful number, since it uses less digits than its factorization.

560121066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34615 (or 34612 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 560121066 is about 23666.8769802862. The cubic root of 560121066 is about 824.3164541968.

Subtracting 560121066 from its reverse (660121065), we obtain a palindrome (99999999).

The spelling of 560121066 in words is "five hundred sixty million, one hundred twenty-one thousand, sixty-six".