966357240721 has 2 divisors, whose sum is σ = 966357240722. Its totient is φ = 966357240720.

The previous prime is 966357240713. The next prime is 966357240763. The reversal of 966357240721 is 127042753669.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964687374225 + 1669866496 = 982185^2 + 40864^2 .

It is a cyclic number.

It is not a de Polignac number, because 966357240721 - 2³ = 966357240713 is a prime.

It is not a weakly prime, because it can be changed into another prime (966357240781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483178620360 + 483178620361.

It is an arithmetic number, because the mean of its divisors is an integer number (483178620361).

Almost surely, 2^966357240721 is an apocalyptic number.

It is an amenable number.

966357240721 is a deficient number, since it is larger than the sum of its proper divisors (1).

966357240721 is an equidigital number, since it uses as much as digits as its factorization.

966357240721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 966357240721 in words is "nine hundred sixty-six billion, three hundred fifty-seven million, two hundred forty thousand, seven hundred twenty-one".