566672566 has 4 divisors (see below), whose sum is σ = 850008852. Its totient is φ = 283336282.

The previous prime is 566672563. The next prime is 566672593. The reversal of 566672566 is 665276665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665276665 = 5 ⋅133055333.

It is a super-2 number, since 2×566672566² = 642235594114048712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566672563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141668140 + ... + 141668143.

It is an arithmetic number, because the mean of its divisors is an integer number (212502213).

Almost surely, 2^566672566 is an apocalyptic number.

566672566 is a deficient number, since it is larger than the sum of its proper divisors (283336286).

566672566 is a wasteful number, since it uses less digits than its factorization.

566672566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283336285.

The product of its digits is 2721600, while the sum is 49.

The square root of 566672566 is about 23804.8853389383. The cubic root of 566672566 is about 827.5178985002.

The spelling of 566672566 in words is "five hundred sixty-six million, six hundred seventy-two thousand, five hundred sixty-six".