9566956457 has 2 divisors, whose sum is σ = 9566956458. Its totient is φ = 9566956456.

The previous prime is 9566956379. The next prime is 9566956459. The reversal of 9566956457 is 7546596659.

9566956457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5508756841 + 4058199616 = 74221^2 + 63704^2 .

It is a cyclic number.

It is not a de Polignac number, because 9566956457 - 2²⁰ = 9565907881 is a prime.

Together with 9566956459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9566956457.

It is not a weakly prime, because it can be changed into another prime (9566956459) 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 as a sum of consecutive naturals, namely, 4783478228 + 4783478229.

It is an arithmetic number, because the mean of its divisors is an integer number (4783478229).

Almost surely, 2^9566956457 is an apocalyptic number.

It is an amenable number.

9566956457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9566956457 is an equidigital number, since it uses as much as digits as its factorization.

9566956457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236000, while the sum is 62.

The square root of 9566956457 is about 97810.8197338106. The cubic root of 9566956457 is about 2122.8758627244.

The spelling of 9566956457 in words is "nine billion, five hundred sixty-six million, nine hundred fifty-six thousand, four hundred fifty-seven".