566667222001 has 8 divisors (see below), whose sum is σ = 571712692680. Its totient is φ = 561622290432.

The previous prime is 566667221993. The next prime is 566667222007. The reversal of 566667222001 is 100222766665.

It can be written as a sum of positive squares in 4 ways, for example, as 10210900401 + 556456321600 = 101049^2 + 745960^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 566667222001 - 2³ = 566667221993 is a prime.

It is a super-2 number, since 2×566667222001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (566667222007) 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, 2148105 + ... + 2397433.

It is an arithmetic number, because the mean of its divisors is an integer number (71464086585).

Almost surely, 2^566667222001 is an apocalyptic number.

It is an amenable number.

566667222001 is a deficient number, since it is larger than the sum of its proper divisors (5045470679).

566667222001 is a wasteful number, since it uses less digits than its factorization.

566667222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269555.

The product of its (nonzero) digits is 362880, while the sum is 43.

Adding to 566667222001 its reverse (100222766665), we get a palindrome (666889988666).

The spelling of 566667222001 in words is "five hundred sixty-six billion, six hundred sixty-seven million, two hundred twenty-two thousand, one".