6566712251 has 8 divisors (see below), whose sum is σ = 7170798000. Its totient is φ = 5963811840.

The previous prime is 6566712239. The next prime is 6566712263. The reversal of 6566712251 is 1522176656.

It is an interprime number because it is at equal distance from previous prime (6566712239) and next prime (6566712263).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6566712251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6566712199 and 6566712208.

It is not an unprimeable number, because it can be changed into a prime (6566712851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284726 + ... + 306923.

It is an arithmetic number, because the mean of its divisors is an integer number (896349750).

Almost surely, 2^6566712251 is an apocalyptic number.

6566712251 is a deficient number, since it is larger than the sum of its proper divisors (604085749).

6566712251 is a wasteful number, since it uses less digits than its factorization.

6566712251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592669.

The product of its digits is 151200, while the sum is 41.

The square root of 6566712251 is about 81035.2531371378. The cubic root of 6566712251 is about 1872.6185826888.

It can be divided in two parts, 6566 and 712251, that added together give a palindrome (718817).

The spelling of 6566712251 in words is "six billion, five hundred sixty-six million, seven hundred twelve thousand, two hundred fifty-one".