566066551 has 2 divisors, whose sum is σ = 566066552. Its totient is φ = 566066550.

The previous prime is 566066549. The next prime is 566066569. The reversal of 566066551 is 155660665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 566066551 - 2¹ = 566066549 is a prime.

It is a super-2 number, since 2×566066551² = 640862680322071202, which contains 22 as substring.

Together with 566066549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566066531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283033275 + 283033276.

It is an arithmetic number, because the mean of its divisors is an integer number (283033276).

Almost surely, 2^566066551 is an apocalyptic number.

566066551 is a deficient number, since it is larger than the sum of its proper divisors (1).

566066551 is an equidigital number, since it uses as much as digits as its factorization.

566066551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 566066551 is about 23792.1531392180. The cubic root of 566066551 is about 827.2228032583. Note that the first 3 decimals are identical.

The spelling of 566066551 in words is "five hundred sixty-six million, sixty-six thousand, five hundred fifty-one".