566601121 has 4 divisors (see below), whose sum is σ = 578656512. Its totient is φ = 554545732.

The previous prime is 566601103. The next prime is 566601137. The reversal of 566601121 is 121106665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 566601121 - 2²¹ = 564503969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566601121.

It is not an unprimeable number, because it can be changed into a prime (566601221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6027625 + ... + 6027718.

It is an arithmetic number, because the mean of its divisors is an integer number (144664128).

Almost surely, 2^566601121 is an apocalyptic number.

It is an amenable number.

566601121 is a deficient number, since it is larger than the sum of its proper divisors (12055391).

566601121 is a wasteful number, since it uses less digits than its factorization.

566601121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055390.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 566601121 is about 23803.3846542881. The cubic root of 566601121 is about 827.4831197440.

Adding to 566601121 its reverse (121106665), we get a palindrome (687707786).

The spelling of 566601121 in words is "five hundred sixty-six million, six hundred one thousand, one hundred twenty-one".